Describe the bug
Mansion dungeon generation issue.
When i was looting dungeon inside the mansion after one teleportation i get stuck because of deeper down version of bedrock that blocked the way out

To Reproduce
Find any mansion in deeper down caves and look in dungeon if it has blocked areas by downstone

Expected behavior
I expected the way out but it blocked

Minecraft version
1.20.1

Mod version
1.8.4

Screenshots