- quest NPC target is in LOML, I need to get there somehow to be able to finish
- diving suit given AFTER quest
At no point in the questlines do you need to go to loml without using the teleport from that map. You are most likely doing them out of order.
Check the "New" tab in your questlog and try picking up one of the other questlines. Theres 5 different ones and they are all labaled Sea Palace.
- quest NPC target is in LOML, I need to get there somehow to be able to finish
- diving suit given AFTER quest
you can kill your own character in sea palace and teleport to byeot