Drum Map Latency (Video Repro)

https://www.youtube.com/watch?v=7vr40CdTgUg

Windows 10
Cubase Pro 8.5.15
Steinberg UR22

Drum-maps are introducing latency now … for some reason. Can anyone confirm this as a bug?

Thanks!

Yes it does on the monitoring, the midi data however are recorded in time.
The drum maps introduce enough latency to be unplayable.
I have tried different drum vsti as instrument tracks, same delay on all of them.