We recently come upon this issue with Pac Display Pro Runtime 9.3 window attributes not working for all windows within our project.
When we click on a button or object that is supposed to open a window, it does not respond. In the dynamic attributes, it shows that it a window is set up to open.
We re-installed the PAC 9.3 software, but still no movement when clicking on a window attribute.
I’ve seen this happen at one of my customer sites too. Everything seems to work, except opening windows - you can still open them from the Window | Open menu. The customer, would close PAC Display, or try starting it from Configurator, or reboot the computer until it started working again. I suggested it may be time to update to 9.4 and see if that fixes it. They haven’t decided to do this yet though.