Minecraft: 1.20.1
Fabric: 0.16.14

So I switched from Athena (Stitched) to Continuity in order for my resource pack connected textures to work, and there seems to be a bug with glass and Continuity. The textures connect fine, but you can see borders in between at different angles which is super weird and not present with Athena.

All mods updated to latest versions at time of writing this. No other mods changed/swapped, just what I use for CTM. Screenshot for example, but this is happening with any glass used in this mod specifically.