Create: Copycats+

Create: Copycats+

10M Downloads

[Bug] Copycats+ crashes on rendering Placement Assist

Closed this issue ยท 7 comments

commented

Describe the bug
The game crashes when placing a cogwheel/shaft (most common cases). This is due to Copycats+ failing when rendering the Placement Assist/Ghost Block.

To Reproduce
Steps to reproduce the behavior:

  1. Place shaft.
  2. Look at the shaft.
  3. Profit

Expected behavior
The game does not crash

Specifications:

  • NeoForge 21.1.174
  • Copycats+ 3.0.1+mc.1.21.1-neoforge
  • Minecraft 1.21.1
  • Create 6.0.6

Additional context
This is not my issue, I've just seen it happen multiple times through other people having issues. Here's a log:
https://gnomebot.dev/paste/mclogs/usJgcPE

commented

I have encountered a similar crash but it was with the vanilla create copycat step instead (first thin i was placing after adding copycats+ that had the ghost highlight, i was able to temporarily fix it by disableing the foundation.copycat.TransparentGhostBlockRendererMixin by commenting out the line in the copycats-common.mixins.json file that corresponded to it (my crash log is below)

crash-2025-06-12_17.13.37-client.txt

commented

Seems to be a problem with the newest create version 6.0.6 for 1.21.1 neo forge.

commented

Yep down-grading create fixed it for me!

commented

can confirm too, the new create version causes crash

commented

+1, can confirm, 1.20.1 Forge too.

commented

I have encountered a similar crash but it was with the vanilla create copycat step instead (first thin i was placing after adding copycats+ that had the ghost highlight, i was able to temporarily fix it by disableing the foundation.copycat.TransparentGhostBlockRendererMixin by commenting out the line in the copycats-common.mixins.json file that corresponded to it (my crash log is below)

crash-2025-06-12_17.13.37-client.txt

This worked for me too, I would instantly crash if i had a create shaft in my hand, but deleting this line in the copycats mod copycats-common.mixins.json let's me use copycats with create 6.06

for any one else who, like me, is not too familiar with how to do this, the file is in the copycats mod jar in the mods folder. if you add .zip to the end of the filename you can open it in windows explorer and edit the file copycats-common.mixins.json. and just delete the line "foundation.copycat.TransparentGhostBlockRendererMixin"
remember to remove .zip from the jar file after.

commented

A fix will be released very soon. Thanks everyone for your crash logs.