The first issue I had is that a player on Macbook couldn't go in the caves in a dedicated and/or non-dedicated server while I could on my server.

Second, when I left the caves on one of my own non-dedicated servers and left the caves with 2 players on land, it showed a bad password notifier pop up when connecting to the overworld when there was literally no password.

I don't know why I reported this last one, but it randomly crashed while I was in base in my server. That's all there is. If you know any, tell me any incompatibilities.