I could not complete a map today, Spider Woods, Monster Level 75

Map not marked as complete with 0 Monsters Remaining https://i.imgur.com/XLqk0of.png
This was a T10 map, I full cleared it but it didn't mark the map completed.
I did run the entire map just in-case there was an enemy not noted or on my map, there was not. Additionally I noticed there was a large number of red orbs that the demons spawn from on the ground. Is it possible that a rare enemy was supposed to be spawned from one of those and never was causing an impossible map? Just theorizing.

same happened to me, same map