Thread was weirdly locked without a fix
#189 (comment) is the original thread link

Can activate the portal fine, however when walking inside of it/standing inside of it. Nothing happens, every other dimensional portal works except the Undergarden. This is on the RAD2 pack specifically but the error occurs separate to the pack as well

Occurs in multiple versions, notable 1.16.x and 1.21.x
Other dimensional mods within the pack work concurrently without any issues at all, the issue solely resides in this mod.. even when running by itself

Thank you for reopening this and providing more details. Not sure why the previous one was closed. If you find anything else out at any point, please post it.

Can't say I've been able to reproduce in 1.21, but we will look into it.

Undergarden 0.5.5 on 1.16.5:

Undergarden 0.8.21 on 1.21.1:

don't know what you want from me

I'll try that mod pack later to see if I have the same problem. I'll report back here once I do.