False registered hard stop on FLIRT 427 unit

[Füredi]

I have a recurring problem.
In the case of the series 427 Flirt Stadler multiple unit, the Tachograph registers a Hard Stop at every scheduled stop, but these are not true. Every stop is smooth and not hard, not jerky. You can't really stop hard with this train, because it brakes gently.
My tachograph result is always almost zero, but this is false. If I drive the 427 on another line, the problem occurs again. Something is wrong here.
Source: Timetable: Hamburg - Kassel
Kassel - Göttingen - Umleiter 2021 13-23Uhr.
Train number: 24031

[Carsten Hölscher]

It has an automatic brake that applies at very low speed and can result in a hard stop in the last (milli)seconds.
I think there is an improvement in the next Zusi version.

Carsten