3 Bugs on Console Xbox X

Currently at the start of endgame and I'm running into the following 2 issues.

Corrupted Nexus not accepting any waystones. All nodes that are corrupted around it are completed. Waystones go in but the start/run button is grayed out. If it's not a bug and I'm doing something wrong then disregard.

Bug 2:

Capture monster skill gem not activating properly. Unsure if you can only have one captured skill gem in stash. If so this needs to be on skill gem description. Can cast the skill but it does nothing after cast and mob death.

BUG 3:

Completion of bog witch quest doesn't remove the map icon/gray it out. Quest was completed on both difficulties 2 times each just to verify.

Gameplay was all done on CAN(east) server.

The corrupted nexus could be because you are not using a map with 4 modifiers on it. It can be any tier and I recommend doing a low one as if you fail it the nexus will disappear