Both server and client are only running Forge and C&B

• MC Version: 1.16.3 and 1.16.4 (Forge 34.1.5 and 35.1.21
• C&B Version: 0.2.9-RELEASE
• Do You have Optifine: NO
• Windows 10
• Java 1.8.0_271

Love this mod. Thanks to you all for bringin it back. Both client and server have only forge and C&B on them.

The server starts with no error. The client throws an error but starts. When connecting to the server it fails with "Incomplete server tags". The same tags are listed for both versions of MC and Forge I tested. I am running the client in MultiMC so I also tried it with the Launcher. Same error. I tried the 1.16.3 and Forge 34.1.5 after looking at your Gradle Properties for the last build.

Thanks for your attention :)

The client log below starts at the line above the error:

[20Jan2021 16:00:50.952] [Forge Version Check/INFO] [net.minecraftforge.fml.VersionChecker/]: [forge] Found status: OUTDATED Current: 35.1.21 Target: 35.1.37
[20Jan2021 16:00:54.155] [Worker-Main-8/WARN] [net.minecraft.client.renderer.model.ModelBakery/]: Unable to load model: 'chiselsandbits:block_bit#inventory' referenced from: chiselsandbits:block_bit#inventory: java.io.FileNotFoundException: chiselsandbits:models/item/block_bit.json
[20Jan2021 16:00:59.646] [Render thread/WARN] [net.minecraft.client.GameSettings/]: Skipping bad option:
[20Jan2021 16:00:59.997] [Render thread/INFO] [net.minecraft.client.audio.SoundSystem/]: OpenAL initialized.
[20Jan2021 16:00:59.998] [Render thread/INFO] [net.minecraft.client.audio.SoundEngine/SOUNDS]: Sound engine started
[20Jan2021 16:01:00.420] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 8192x8192x4 minecraft:textures/atlas/blocks.png-atlas
[20Jan2021 16:01:00.869] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 256x128x4 minecraft:textures/atlas/signs.png-atlas
[20Jan2021 16:01:00.870] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 512x512x4 minecraft:textures/atlas/banner_patterns.png-atlas
[20Jan2021 16:01:00.872] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 512x512x4 minecraft:textures/atlas/shield_patterns.png-atlas
[20Jan2021 16:01:00.873] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 4096x2048x4 minecraft:textures/atlas/chest.png-atlas
[20Jan2021 16:01:00.928] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 512x256x4 minecraft:textures/atlas/beds.png-atlas
[20Jan2021 16:01:00.929] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 512x256x4 minecraft:textures/atlas/shulker_boxes.png-atlas
[20Jan2021 16:01:03.382] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 256x256x0 minecraft:textures/atlas/particles.png-atlas
[20Jan2021 16:01:03.384] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 256x256x0 minecraft:textures/atlas/paintings.png-atlas
[20Jan2021 16:01:03.384] [Render thread/INFO] [net.minecraft.client.renderer.texture.AtlasTexture/]: Created: 128x128x0 minecraft:textures/atlas/mob_effects.png-atlas
[20Jan2021 16:02:03.550] [Render thread/INFO] [net.minecraft.client.gui.screen.ConnectingScreen/]: Connecting to localhost, 25565
[20Jan2021 16:02:05.052] [Netty Client IO #0/INFO] [net.minecraftforge.fml.network.NetworkHooks/]: Connected to a vanilla server. Catching up missing behaviour.
[20Jan2021 16:02:06.318] [Render thread/INFO] [com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService/]: Environment: authHost='https://authserver.mojang.com', accountsHost='https://api.mojang.com', sessionHost='https://sessionserver.mojang.com', servicesHost='https://api.minecraftservices.com', name='PROD'
[20Jan2021 16:02:06.493] [Render thread/WARN] [net.minecraft.client.network.play.ClientPlayNetHandler/]: Incomplete server tags, disconnecting. Missing: {minecraft:block=[chiselsandbits:chiselable/forced, chiselsandbits:chiselable/blocked]}
[20Jan2021 16:02:14.250] [Render thread/INFO] [net.minecraft.client.Minecraft/]: Stopping!

On a whim. I changed Forge to the latest and fired up the client. 35.1.37 with 1.16.4. Same error.

Server is not loading the mod. I removed C&B from the client and it connected with no error.
Please see screen shot of files.

Which jar where you running?
There is only one jar..... -RELEASE....

sigh If you run the right jar things work SO much better. Run the "Forge" jar.

Using MultiMC meant I had not run it manually from the CLI... I was running the server jar, not the forge jar. drops head in shame