I just wanted to post the exact same question.
I think @PcTeknic has the same issue I just bumped up too. @HiRez00 created for me system underlays (thank you very much for this, those are really awesome), but in the systems menu It only shows the fx3 underlay image is shown (thats the first system it finds) , but this image stays there, even switching to another system.
Should this change, or should we have an underlay named - system - that will be showed in the system list ?
These are the files in the system underlays directory :
Showing correctly per system, but in the system list it shows like this :
Always start with FX3 screen
but switching to another table :
the FX3 underlay is visible
PinballX.ini and log file attached @Tom Speirs is this the way underlays works ? I tried to use a - system -.png , but that didn't work as well.
PinballX.ini
log.txt