Minecraft version & Mod Version:
1.16.5, the las backport

Single player or Server:
Server

Describe problem (what you were doing / what happened):
The bottom block of the altar sees transparent and allows X-ratín

Crash log (if any):

(If this is a suggestion and not a bug report, delete all this and just write your suggestion!)

Got any screenshots?

Nevermind, managed to reproduced it

Nevermind, managed to reproduced it

Hey! I've just looked to the curse page and found that you fixed literally the two issues that I reported. I'm so happy with your response and feedback. Hope to see more content in the future:)