Parameter changes not immediately effective in Vadere GUI

I have noticed that, in particular using the stairs model, a change in the parameters of a simulation is not immediately effective unless the GUI is restarted. As an example, for the stairs model (scenario and snapshot attached). If one changes the direction of one of the stairs on the left side of the scenario from x = 1.0 to x = -1.0, people will get stuck on these stairs. If you change the parameter in the GUI, it takes a couple of simulation runs until it effects the simulation. Same for changing it back to 1.0.

Also, if the upwardDirection of the stairs on the right half of the scenario is changed, nothing changes. No matter if the GUI is restarted or not.S2UCRE_bruecke_hamburg.scenario