The hidden glass in the 1.14.4 version of the mod won't work. I place it, and it's just normal glass, I even tried changing the block data, but that didn't work, please fix this ASAP.

I tried doing that with /data modify

And if not all of the properties are true, does that still cause issues?

And if you could also send over the latest.log

When you place it normally (with the item) it shouldn't be that all states are true

latest.log

Well, it was like that

Can you post a screenshot of the when the glass is placed normally?

Am I using an outdated Forge version?

Can you send screenshots, along with the latest.log

Nothing you've posted so far is an actual issue. All the sides of that class are true, so they're going to render as glass. Please right click one of the glass sides with an empty hand.

When you place the glass block down, does it get set down like you've shown (all sides as true)

Also, try with only secretrooms mod, not other mods. It could be a conflict

Did you fix it?

Right, I can confirm this works (using an empty hand) on latest with 1.14.4. I've noticed a lot of players just don't know how to use it. I tested it with lots of other mods, but Wyn-Price's suggestion is the best way to isolate issues and reduce erroneous variables in your testing.

I've been meaning to write up about the changes and features in 1.14, but I've never managed to find the time to. I'll try and do it all tomorrow so issues like these don't happen.

Does this still occur