Idk what I am doing wrong here but the connected textures are not working on glass panes :|
Glass blocks seem to be fine though

The instance I made where the issues are happening:
https://drive.google.com/file/d/13KqNQwX2MiywIPjlu6H7tYrMWN05LcW4/view?usp=sharing

Game Version: 1.21.5
Mod Version: 3.0.1-test.4+1.21.5

Screenshots of resource pack order:

The link no longer works. The most common cause of this issue is the Diagonal Windows mod, so check if you have it installed. The default pack provided by Continuity does not work on the custom glass pane blocks from that mod.