Morpten

First (and so far only) case would be Sanza of Sanza's Map Emporium in Queen's Berth:

Should have a closing (") quote after ...to the family? and since it's descriptive text, Martino raises his eyebrow. should be in all gray instead, if I'm not mistaken.

Another one would be on the upper floor of the Valera Estate in Queen's Berth:

Looks like the issue of NPCs not being properly removed (and for some reason leaving behind their vision cones/awareness radii) upon exiting a location could be indeed a general problem. This is at the main exit of the Vailian Trading Company Headquarters:

A Paladin of the Five Suns and a Company Guard next to the door of the Governor's Office at the Vailian Trading Company Headquarters in Queen's Berth in this case: I took the sneaky route through the sewers/toilet, in case this should be of importance in regards to this.

Just came across another one, this time on the upper floor of the Wild Mare, in the room with Konstanten:

Unsurprisingly it's the same problem with Gyntel of the Wild Mare in Queen's Berth. Again, a significant discrepancy between the spot the actual pickpocketing takes place (through the pickpocket window) and where the innkeeper/bartender actually is in that moment:

Considering that those qualifiers are shown even for Watcher-only checks makes for a good argument to actually have them disabled as well on Expert Mode, in case they weren't included with the other qualifiers in the first place. There's really no good reason to still not have them deactivated on Expert Mode now, is there?

Could be just another oversight as well but it's hard to tell when Expert Mode does not reliably hide/deactivate all the things it's supposed to: I think the [Flirt]-tag should definitely be included with the other relationship-related meta information Expert Mode is supposed to hide in any case.

Can be observed in Queen's Berth, but could be happening in other districts or even in general in every location that has those generic NPCs (or special ones, like Synbel and the two street magicians, see the 2nd screenshot) which are (temporarily) removed for the night or upon leaving the location via one of the "inofficial" exit points (see the 3rd screenshot). Also worthy to note about this is that highlighting (pressing Tab) with those "detached" vision cones/awareness radii on the screen reduced the framerate and overall performance considerably, in particular for the scenario in the 3rd screenshot. Might be one of the reasons why the Neketaka locations perform so poorly for some people, even on more than capable machines.

Not sure if it's supposed to be like that, but Serafen's interjection where he points out Malnaj's ship being anchored in Queen's Berth can also be triggered by just reloading any save (while you're still in Queen's Berth of course) made after the scripted sequence when entering Neketaka/Queen's Berth for the first time. I think(?) he's supposed to bring it up either upon re-entering Queen's Berth or shortly before leaving the docks for Queen's Berth's district center instead.

So far I only noticed two occurrences in Queen's Berth, but there might be more elsewhere. First, the gentleman in the blue attire in front of the Wild Mare in Queen's Berth: And then this gravity-defying Principi priest (that also doesn't respond to clicking on him/her) and member of Catto's gang in Queen's Berth's northern back alley:

The Principi priest cannot be interacted with as well (as in you click on him/her and he/she'll say something):

Similar situation to the one in Aeldys' quarters in Fort Deadlight (https://forums.obsidian.net/topic/99166-buglocation-semi-inaccessible-loot-container-in-aeldys-quarters). Only this time either the PC or one of the companions needs to be in one of very specific positions relative to the (highlighted blue) container in question to even have it consistently highlighted:

Similar to the one in Fort Deadlight's Court (https://forums.obsidian.net/topic/99170-buglocation-pathing-issue-in-the-court-fort-deadlight/):

Not entirely sure but I think it should read "The xaurip's regalia tells you it must have been an important figure in the tribe - ..." instead. The dialogue in question is triggered when deciding to free "Mother Sharp-Rock" from the cage in the Cavern of Xaur Tuk-Tuk or not.

Could this be related to Expert Mode - which currently is not working at all for the most part - by any chance?

From the bestiary:

The quick comparison feature also doesn't work as it should sometimes. All good here: But then:

You can't tell from the video since there's no audio but the quest items "crown" filter button on the vendor's side also has no "being pressed" sound assigned to it:

The inconsistency here being the ornaments to the left and right (next to the inventory button resp. the options button) of the quick menu doing this slight horizontal shift when clicking the inventory resp. the options button: