I've been building only using LT tiles but when i make windows (making a frame and filling with glass) the frame tiles tend to disappear, but are still visible? (It's possible to walk through them)
Sometimes the tiles become normal after placing some tiles inside the frame and then pressing ctrl + z, but it feels a bit weird to build like that.
Additionally, some invisible tiles usually appear near the window (ones that you can't walk through)

Can you provide some screenshots or maybe even a video? I have to fix some other stuff first, but I hope to get to it next week.

Well, the tiles were acting like this. But the box tiles seem more stable after i reinstalled minecraft, so i haven't encountered it as much. (just with pillars)

Well, I haven't been able to make it appear again, so I would say it works perfectly :)

Sorry for not responding earlier. Can you try out the newest version of embeddium, littletiles and oculus? Maybe it works now.

It seems to work better now

Better, but still not perfect?

Nice! Very good. I will close this issue for now. If it appears again just let me know.