The problem: Each time realm entity has participants being swapped, the archive videos will only be able to be filtered by the realm entity.
There should be separate field which must be fixed upon moment creation, that will reflect the realm participants as they were on time of this action.
Many many years ago ( before the upgrade i guess that archives suffered passing to 60 per page) i suggested that 
I even remember creating a xls template to help finding moments for tenant ‘X’ in realm ‘YY’ that was at time with tenant ‘Z’ in a timeline bar with the page number of archives
Now the difference is that the archive have almost 170K with a big amount of videos with wrong titles and lack of tags