Main time signature disappears when adding local time signature

Hello!

Here I am trying to add a local time signature only to the marimba part. When I do that while my time signature position in the score is set to show on every staff I have no problems:

But as soon as I set the time signature to show at system positions, all my other time signatures disappear, for some reason together with the rehearsal marking:

This problem is only present in the score and not in the parts. Any help on how to solve it and to get the time signature and the rehearsal mark to reappear is appreciated!

Thanks
/Ivan

I’m afraid you can’t use local time signatures and time signatures at system object positions together: Dorico will only show the global time signatures.