i already was on the discord from supplementaries and they found out its a issue with ctm..sadly

The Admin/Dev from there said this at last: ctm isnt loading up the parents of those models. i can only see that far
[16:30]
should i mark the mods as incompatible?
[16:35]
https://github.com/CodexAdrian/ConnectedTexturesMod-Fabric/blob/1.19/src/main/java/team/chisel/ctm/client/handler/ModelsAddedCallbackHandler.java#L41 this is whats failing. idk much about ctm inner working to say more. Its giving that method instead of ModelBakery::getModel to the getMaterials method resulting in it getting a missing model as parent

and said i should ask here whats wrong and if u can fix it

Same issue here! I've discovered more missing textures. Here is my original report on the Supplementaries bug page.

Mixing textures I've discovered so far:

• Flower Box
• Wall Lantern
• Any block you put into the timer frame
• Hanging sign (all variants)

I have also ran into the same issues

Same issue, been around for a long time. Would be nice to have a fix.