Spaces mark themselves as unread

Hi there,

 

I noticed, now relatively often in the near past, that when I mark spaces as read, that resets to unread after a time for all threads when revisiting the spaces. Why?

 

I am using Edge, always logged in and cookies are allowed. The trackers for Adobe, Akamai, Facebook and New Relic are disallowed.

 

Best,

Mourad