Ok, at first this sounds like it should be a CB Multipart problem where the partial blocks in project red don't load right. (with the lights it'll show the glow effect but not the block)
But after fucking around with it until I got it to crash the report says it's a code chicken lib problem

Report:
---- Minecraft Crash Report ----
// Don't do that.

Time: 4/13/23 10:14 PM
Description: Unexpected error

java.lang.ClassCastException: net.minecraft.util.math.BlockRayTraceResult cannot be cast to codechicken.multipart.util.PartRayTraceResult
at codechicken.microblock.MicroblockPlacement.apply(MicroblockPlacement.scala:88) ~[?:1.16.5-3.0.4.123] {re:classloading}
at codechicken.microblock.MicroblockPlacement$.apply(MicroblockPlacement.scala:57) ~[?:1.16.5-3.0.4.123] {re:classloading}
at codechicken.microblock.MicroblockRender$.renderHighlight(MicroblockRender.scala:28) ~[?:1.16.5-3.0.4.123] {re:classloading}
at codechicken.microblock.MicroMaterialRegistry$.renderHighlight(MicroMaterialRegistry.scala:148) ~[?:1.16.5-3.0.4.123] {re:classloading}
at codechicken.microblock.ItemMicroBlockRenderer$.renderHighlight(ItemMicroBlock.scala:179) ~[?:1.16.5-3.0.4.123] {re:classloading}
at codechicken.microblock.handler.MicroblockEventHandler$.drawBlockHighlight(MicroblockEventHandler.scala:32) ~[?:1.16.5-3.0.4.123] {re:classloading}
at net.minecraftforge.eventbus.ASMEventHandler_2945_MicroblockEventHandler$drawBlockHighlight_HighlightBlock.invoke(.dynamic) ~[?:?] {}
at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:85) ~[eventbus-4.0.0.jar:?] {}
at net.minecraftforge.eventbus.EventBus$$Lambda$3361/375840801.invoke(Unknown Source) ~[?:?] {}
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) ~[eventbus-4.0.0.jar:?] {}
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) ~[eventbus-4.0.0.jar:?] {}
at net.minecraftforge.client.ForgeHooksClient.onDrawBlockHighlight(ForgeHooksClient.java:204) ~[?:?] {re:classloading,re:mixin}
at net.minecraft.client.renderer.WorldRenderer.func_228426_a(WorldRenderer.java:1101) ~[?:?] {re:mixin,pl:accesstransformer:B,xf:fml:twilightforest:render,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,xf:fml:twilightforest:render,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.renderer.GameRenderer.func_228378_a_(GameRenderer.java:608) ~[?:?] {re:mixin,pl:accesstransformer:B,xf:fml:astralsorcery:reach_set_client_renderer,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,xf:fml:astralsorcery:reach_set_client_renderer,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.renderer.GameRenderer.func_195458_a(GameRenderer.java:425) ~[?:?] {re:mixin,pl:accesstransformer:B,xf:fml:astralsorcery:reach_set_client_renderer,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,xf:fml:astralsorcery:reach_set_client_renderer,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.func_195542_b(Minecraft.java:977) [?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:betterendforge.mixins.json:MinecraftMixin,pl:mixin:APP:flywheel.mixins.json:ShaderCloseMixin,pl:mixin:APP:valkyrienskies-common.mixins.json:client.MixinMinecraft,pl:mixin:APP:magnesium.mixins.json:features.options.MixinMinecraftClient,pl:mixin:APP:magnesium.mixins.json:features.gui.MixinMinecraftAccessor,pl:mixin:APP:architectury.mixins.json:MixinMinecraft,pl:mixin:APP:abnormals_core.mixins.json:client.MinecraftMixin,pl:mixin:APP:immersiveengineering.mixins.json:accessors.client.MinecraftAccess,pl:mixin:APP:iceberg.mixins.json:MinecraftMixin,pl:mixin:APP:betterf3.mixins.json:autof3.AutomaticDebugMixin,pl:mixin:APP:assets/botania/botania.mixins.json:AccessorMinecraft,pl:mixin:APP:create.mixins.json:WindowResizeMixin,pl:mixin:APP:securitycraft.mixins.json:camera.MinecraftMixin,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:607) [?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:betterendforge.mixins.json:MinecraftMixin,pl:mixin:APP:flywheel.mixins.json:ShaderCloseMixin,pl:mixin:APP:valkyrienskies-common.mixins.json:client.MixinMinecraft,pl:mixin:APP:magnesium.mixins.json:features.options.MixinMinecraftClient,pl:mixin:APP:magnesium.mixins.json:features.gui.MixinMinecraftAccessor,pl:mixin:APP:architectury.mixins.json:MixinMinecraft,pl:mixin:APP:abnormals_core.mixins.json:client.MinecraftMixin,pl:mixin:APP:immersiveengineering.mixins.json:accessors.client.MinecraftAccess,pl:mixin:APP:iceberg.mixins.json:MinecraftMixin,pl:mixin:APP:betterf3.mixins.json:autof3.AutomaticDebugMixin,pl:mixin:APP:assets/botania/botania.mixins.json:AccessorMinecraft,pl:mixin:APP:create.mixins.json:WindowResizeMixin,pl:mixin:APP:securitycraft.mixins.json:camera.MinecraftMixin,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.main.Main.main(Main.java:184) [?:?] {re:classloading,pl:runtimedistcleaner:A}
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_51] {}
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_51] {}
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_51] {}
at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_51] {re:computing_frames}
at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:51) [forge-1.16.5-36.2.34.jar:36.2] {}
at net.minecraftforge.fml.loading.FMLClientLaunchProvider$$Lambda$513/1880527972.call(Unknown Source) [forge-1.16.5-36.2.34.jar:36.2] {}
at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.1.3.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.1.3.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.1.3.jar:?] {}
at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.1.3.jar:?] {re:classloading}
at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.1.3.jar:?] {re:classloading}

A detailed walkthrough of the error, its code path and all known details is as follows:

-- Head --
Thread: Render thread
Stacktrace:
at codechicken.microblock.MicroblockPlacement.apply(MicroblockPlacement.scala:88) ~[?:1.16.5-3.0.4.123] {re:classloading}
at codechicken.microblock.MicroblockPlacement$.apply(MicroblockPlacement.scala:57) ~[?:1.16.5-3.0.4.123] {re:classloading}
at codechicken.microblock.MicroblockRender$.renderHighlight(MicroblockRender.scala:28) ~[?:1.16.5-3.0.4.123] {re:classloading}
at codechicken.microblock.MicroMaterialRegistry$.renderHighlight(MicroMaterialRegistry.scala:148) ~[?:1.16.5-3.0.4.123] {re:classloading}
at codechicken.microblock.ItemMicroBlockRenderer$.renderHighlight(ItemMicroBlock.scala:179) ~[?:1.16.5-3.0.4.123] {re:classloading}
at codechicken.microblock.handler.MicroblockEventHandler$.drawBlockHighlight(MicroblockEventHandler.scala:32) ~[?:1.16.5-3.0.4.123] {re:classloading}
at net.minecraftforge.eventbus.ASMEventHandler_2945_MicroblockEventHandler$drawBlockHighlight_HighlightBlock.invoke(.dynamic) ~[?:?] {}
at net.minecraftforge.eventbus.ASMEventHandler.invoke(ASMEventHandler.java:85) ~[eventbus-4.0.0.jar:?] {}
at net.minecraftforge.eventbus.EventBus$$Lambda$3361/375840801.invoke(Unknown Source) ~[?:?] {}
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) ~[eventbus-4.0.0.jar:?] {}
at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) ~[eventbus-4.0.0.jar:?] {}
at net.minecraftforge.client.ForgeHooksClient.onDrawBlockHighlight(ForgeHooksClient.java:204) ~[?:?] {re:classloading,re:mixin}
at net.minecraft.client.renderer.WorldRenderer.func_228426_a(WorldRenderer.java:1101) ~[?:?] {re:mixin,pl:accesstransformer:B,xf:fml:twilightforest:render,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,xf:fml:twilightforest:render,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.renderer.GameRenderer.func_228378_a_(GameRenderer.java:608) ~[?:?] {re:mixin,pl:accesstransformer:B,xf:fml:astralsorcery:reach_set_client_renderer,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,xf:fml:astralsorcery:reach_set_client_renderer,pl:mixin:A,pl:runtimedistcleaner:A}
-- Affected level --
Details:
All players: 1 total; [ClientPlayerEntity['ShadowsFang'/134, l='ClientLevel', x=-7292.22, y=71.00, z=159.34]]
Chunk stats: Client Chunk Cache: 1024, 121
Level dimension: minecraft:overworld
Level spawn location: World: (-153,66,255), Chunk: (at 7,4,15 in -10,15; contains blocks -160,0,240 to -145,255,255), Region: (-1,0; contains chunks -32,0 to -1,31, blocks -512,0,0 to -1,255,511)
Level time: 1788633 game time, 124280 day time
Server brand: forge
Server type: Integrated singleplayer server
Stacktrace:
at net.minecraft.client.world.ClientWorld.func_72914_a(ClientWorld.java:447) ~[?:?] {re:mixin,pl:accesstransformer:B,xf:fml:xaerominimap:xaero_clientworldclass,xf:fml:xaeroworldmap:xaero_wm_clientworldclass,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,xf:fml:xaerominimap:xaero_clientworldclass,xf:fml:xaeroworldmap:xaero_wm_clientworldclass,pl:mixin:APP:sulfuric.mixins.json:client.world.MixinClientWorld,pl:mixin:APP:valkyrienskies-common.mixins.json:accessors.client.multiplayer.ClientLevelAccessor,pl:mixin:APP:valkyrienskies-common.mixins.json:client.world.MixinClientLevel,pl:mixin:APP:magnesium.mixins.json:features.chunk_rendering.MixinClientWorld,pl:mixin:APP:architectury.mixins.json:MixinClientLevel,pl:mixin:APP:abnormals_core.mixins.json:client.ClientWorldMixin,pl:mixin:APP:enhancedcelestials.mixins.json:client.MixinClientWorld,pl:mixin:APP:assets/astralsorcery/astralsorcery.mixins.json:client.MixinClientWorld,pl:mixin:APP:create.mixins.json:BreakProgressMixin,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.func_71396_d(Minecraft.java:2031) [?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:betterendforge.mixins.json:MinecraftMixin,pl:mixin:APP:flywheel.mixins.json:ShaderCloseMixin,pl:mixin:APP:valkyrienskies-common.mixins.json:client.MixinMinecraft,pl:mixin:APP:magnesium.mixins.json:features.options.MixinMinecraftClient,pl:mixin:APP:magnesium.mixins.json:features.gui.MixinMinecraftAccessor,pl:mixin:APP:architectury.mixins.json:MixinMinecraft,pl:mixin:APP:abnormals_core.mixins.json:client.MinecraftMixin,pl:mixin:APP:immersiveengineering.mixins.json:accessors.client.MinecraftAccess,pl:mixin:APP:iceberg.mixins.json:MinecraftMixin,pl:mixin:APP:betterf3.mixins.json:autof3.AutomaticDebugMixin,pl:mixin:APP:assets/botania/botania.mixins.json:AccessorMinecraft,pl:mixin:APP:create.mixins.json:WindowResizeMixin,pl:mixin:APP:securitycraft.mixins.json:camera.MinecraftMixin,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:628) [?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:betterendforge.mixins.json:MinecraftMixin,pl:mixin:APP:flywheel.mixins.json:ShaderCloseMixin,pl:mixin:APP:valkyrienskies-common.mixins.json:client.MixinMinecraft,pl:mixin:APP:magnesium.mixins.json:features.options.MixinMinecraftClient,pl:mixin:APP:magnesium.mixins.json:features.gui.MixinMinecraftAccessor,pl:mixin:APP:architectury.mixins.json:MixinMinecraft,pl:mixin:APP:abnormals_core.mixins.json:client.MinecraftMixin,pl:mixin:APP:immersiveengineering.mixins.json:accessors.client.MinecraftAccess,pl:mixin:APP:iceberg.mixins.json:MinecraftMixin,pl:mixin:APP:betterf3.mixins.json:autof3.AutomaticDebugMixin,pl:mixin:APP:assets/botania/botania.mixins.json:AccessorMinecraft,pl:mixin:APP:create.mixins.json:WindowResizeMixin,pl:mixin:APP:securitycraft.mixins.json:camera.MinecraftMixin,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.main.Main.main(Main.java:184) [?:?] {re:classloading,pl:runtimedistcleaner:A}
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_51] {}
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_51] {}
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_51] {}
at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_51] {re:computing_frames}
at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:51) [forge-1.16.5-36.2.34.jar:36.2] {}
at net.minecraftforge.fml.loading.FMLClientLaunchProvider$$Lambda$513/1880527972.call(Unknown Source) [forge-1.16.5-36.2.34.jar:36.2] {}
at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.1.3.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.1.3.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.1.3.jar:?] {}
at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.1.3.jar:?] {re:classloading}
at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.1.3.jar:?] {re:classloading}

Mod versions:
CBMultipart-1.16.5-3.0.4.123-universal
CodeChickenLib-1.16.5-4.0.7.445-universal
ProjectRed-1.16.5-4.12.0-core (same version number with: exploration, illumination, integration, and transmission)

I have magnesium installed and managed to temporarily fix the issue by using the calcium mod but it stopped chunks from loading right and then crashed my game so it was not helpful.