JRiver 27 seg faults in Gear Isolation

[agent_kith]

It is working in VMWare in Ubuntu 20.04 mini, that has the exact same vmware settings, the only difference should be that there is a desktop environment installed right and some package in that desktop environment is what Jriver needs to start, right?
But the next step will to see if it works in real PC.

Could be. But we are just guessing, it's very hard to tell because that segfault doesn't really give us much to go on. JRiver log file (if it exists) should tell us exactly what's happening.