Good Morning I have been running All the mods 6 on MC Version Java 1.16.4 and it would appear that copying any of the roof segments from the macaw's roof's mod will cause a client crash and will require a reload of the game. In addition, this roof mod does not allow you to deploy the schematic as it will crash every time you try to deploy it if the roof mod has any items in the schematic. Perhaps look into integration for this mod.

This issue has been marked as stale because it has been inactive for 3 weeks. It will be closed if it remains inactive for another 3 weeks.

This issue has been closed since it has been inactive for 3 weeks since it was marked as stale.

Thanks for the report. Could you post the crash-report file related to this crash? You can find it in the folder of your pack instance. Cheers!~

Not the OP but came across the same issue, with the following crash log (custom pack, 1.16.5, forge 36.0.12):

https://pastebin.com/e0rFnXPG

Create is v0.3e
Macaw's Roofs is 2.0.1

Hope it helps.