Describe the bug you're experiencing

Blocks visibility from Wired Redstone are not being sent to the player - regardless if dedicated server or singleplayer
The circuits still work, but they are invisible ... and player only can pass through the wires - whereby the Redstone Diode (wiredredstone:gate_diode) - and most likely other non-wires - has a glitchy collision where the screen shakes when player comes in contact with that block - which is invisible because of the missing data

enabled mods

Reproducability

place anything from wired redstone - move a few chunks away - exit world - enter world & go to the spot where the blocks are placed
expected behavior:

actual behavior:
server

singleplayer

Mod up to date

• Before submitting this issue I updated to the newest version and reproduced it

Minecraft version

1.20.1

Modloader version

Fabric

Logs

https://mclo.gs/MQLBfU4 (they don't tell much tho)

I don't see any good ways to fix this. The ideal solution would be if FAPI had an event for when a chunk is to be sent to the client. That way you could just invoke that event when a delayed chunk is sent.

One potential solution would be to involve ThreadedChunkManager.sendChunkDataPackets when a chunk is actually being sent, as this is where most mods hook in to send custom chunk data. But I can imagine that being difficult.

Also just wondering, how does this mod affect the net.minecraftforge.event.level.ChunkWatchEvent.Watch event on Forge?

From what I can tell from the javadoc, that event is basically a hook into the method I mentioned before.

it just delays the packet to the client: https://github.com/someaddons/chunksending/blob/1.20.1/src/main/java/com/chunksending/mixin/ChunkHolderMixin.java

you could either change your logic to use the broadcast to send chunk data packets for indirect compat. (Could probably also rework the odd external sync to a normal BE based system/sync). Alternatively you can also add a compatibility patch in your mod yourself and when chunksending is present instead of sendinging it directly you queue it to the player through IChunksendingPlayer interface

Not possible to fix on chunksendings side, chunksending delays the chunk data, which should include all the block of wired redstone, but they apparently are doing a manual custom sync for some reason which when it arrives doesnt have the chunk to add data to yet