Maven Viewing/Invitation - The Forgotton

I am running maps with my son and when we do maps in my Atlas with Maven watching I get the notification that Maven has seen the fight but my son doesnt.

When we run the maps in his device neither of us get the viewing, even though she is definitely watching the fight.

He has completed all the maps so 115/115.
Done the Maven Invitations Elderslayers, Formed, Twisted so we can do them but today (22/11/25) whatever we try - doing the Synthesised maps, its just not working and he isnt getting the Maven recognising the fight.

He only has 2 voidstones but as far as I can tell he is doing everything as he should and it all looks fine to me when I check.

At a loss.

Bug report: 4,156,684,020.

EDIT

He ran the maps on his own with me not in the map with him but still in the party - and the Maven acknowledged the fight.

It seems doing these as a party is a problem?