As FSDT Honolulu is the closes scenery I have to Tahiti ( apart from FTX NI)I wonder if there can be a file in Honolulu which may cause the problem.
Fact the closest (if you can call "close" a scenery more than 4000 km away) scenery is the one that "must" be the cause of the problem, has no ground. In fact, since this is likely a *bug* of a scenery with its boundaries or exclusion zones wrong, it can be everywhere.
Of course, PHNL doesn't have any wrong exclusion zones, and none of it's BGLs boundaries ever extend outside the normal airport area so no, nothing you reported can possibly caused by PHNL. Yes, I've checked it. Not because I wasn't already sure this wasn't the case, but just to be 100% sure.
You can easily verify this by disabling PHNL in the Scenery Library: you'll likely have the same bug at Tahiti, and this closes the issue about possibly be caused by PHNL.