After latest update 72b8ed2, deboarding of pax and cargo has broken somehow. When engines shutdown and intention to deboard with real time, choose Real and click Deboard, pad asks to confirm deboard, click ok... but what it does:
Immediately announcement "boarding completed" and it doesn't actually start to deboard pax but only cargo doing it real time though. To deboard pax I need to set pax amount to 0 first and then click deboard again and confirm it.