I went to Uldir and did a few world quests.
Then i noticed this warning message in my log

I got this error when landing in Booty Bay on a taxi from Stormwind.

Hrm, need to find the correct ID then

SavedInstances.lua

search
[1731] = { total=4, base=1, parent=1887, altid=nil, remap={ 1, 2, 3 } },

Modify it to

[1731] = { total=3, base=1, parent=1889, altid=nil, remap={ 1, 2, 3 } },
[1732] = { total=2, base=5, parent=1889, altid=nil, remap={ 1, 2, 3 } },
[1733] = { total=2, base=7, parent=1889, altid=nil, remap={ 1, 2 } },

fixed in the latest alpha, thanks!