Hello,
I upgraded to Substance_Painter-2019.3.1-3547-linux-x64-standard.rpm and Painter quits on startup,
Initially Substance_Designer-2019.3.0-3122-linux-x64-standard.rpm had started fine.
I erased Painter back and installed Substance_Painter-2019.2.3-3402-linux-x64-standard-full.rpm
which now works. (3.0 also quit on startup after erase/install)
Somehow the previously installed and installed working of Substance_Designer-2019.3.0 then refused to start even after removing and reinstalling.
I erased that package and installed Substance_Designer-2019.2.3-2683-linux-x64-standard-full.rpm
which now works.
All of this was done thru rpm.