Due to the recent study I did, the diving bug may not be broke after all. All you have to do is:

#1: Go in a quest that the "Diving bug" occurs in.

#2: Put the Diving tiles two, three or four spaces (my memory's not perfect) apart from the swimming tiles.

#3: Test it and make sure it shows the diving tiles working. If it works then the bug is fixed.

That is my solution of fixing the bug that was broken by the new items. If it does not work, AIM me and let me know. This should be the solution of the beta 177-native bug that has not been fixed.