What would be differnt

I am having an issue running TunerStudio. It will load but if I select the ECU type I need it sits and says project loading on my RaspberryPi 3B+. I have tried with LXDE and LXQt on both the Raspberry and VMware running Dietpi. It is a Java application. On the VMware everything works and I configure everything the same. Whats the difference between them? Or where can I start to look?