Unique Map not counting as completed after defeating boss

As the title say.
Defeated the boss of the "Silent Cave". The map objectives still say "Defeat the imprisoned boss".

It is also not the first time this has happened but with a unique map there is no option to repeat it (since it counts as failed) and i lose on the skill atlas point book so it burns a bit more.

Just wanted to report it and see if other people also had this kind of issue.

Yep, the same for me. Did it twice, both not finishing after killing the boss.