tempo detection changes MIDI tracks to time base

Cubase Pro 10.0.10. Windows 10.

I have a session with audio drum tracks recorded to a click.
I create an instrument track and record a MIDI bass part to the same click. The track has several events. The track is musical base.
I perform tempo detection on the drum tracks and leave tempo warp mode.

The instrument track switches to time base and the events do not adjust to the tempo changes. I now have to go in by hand and stretch all events to fit the new bar lengths.

The manual doesn’t say anything about this behavior. Is it intended?


As far as I know, you even get a message, that the time base changes while doing this.