PID-controller in discrete-time domain, internal vs extrerna input

Hi

I have tried to update matlab version from 2013b to 2019b (2017b aswell, but that has been working). However I have some problems with the PID controllers.

In my model I have multiple PID controllers that just had the variables defined and initial conditions as external.

Like so:

When I run this in 2019 the interface has changed and looks like this:

When I run this, it fails

This blocks fails (inside the PID regulator):

Sometimes (haven't figured out when our how) this changes from Excteral IC to Internal IC, and that block requieres a boolean as input (for initial condition?!)

If I change the source to external and feed P,I,D,N to the model it works.. Have I missed something with how this is supposed to work?

//Micke