hey, I have a problem with zycraft, namely when I add to my modpack, the textures of the blocks disappear and I don't know what is the error, will anyone help?

that's how it caused me this problem. Attack a pro for this horror You get the imitation of Xycraft I'm a big fan. Xycraft was my favorite tank mod. Thanks again for your help

Do you have Optifine installed? If so, remove it and try without it

yes

Optifine is incompatible with a lot of mods that have a non-standard visual appearance.

ok. i remove optifine and I'll tell you if the problem is gone

I have a question, is there any way to get around this problem to be zycraft and optifine?

Sadly no, because Optifine replaces a lot of Minecraft rendering and there are no way to fix this on my end. Optifine should be installed only if you play without mods or if you play with lightweight mods that don't do complex rendering.