M+ not properly parsing

I just uploaded a log for an m+ run of mechagon-workshop.

The result unfortunately was this: Warcraft Logs - Combat Analysis for Warcraft

It didn’t identify as a complete m+ run.
I had that problem basicly with all m+ runs since September.

Is that a known issue or something that I need to fix clientside?

Do you log using an auto-logger? Many popular addons have settings that will turn on and off logging when entering or leaving combat. Try turning these settings off and manually logging a dungeon to see if it fixes your issue.