I figured the root cause of the problem and a workaround. Journalctl shows this info when starting SVP:
- Video: 0 GPU OpenCL device(s) on rusticl [OpenCL 3.0] (Mesa/X.org)*
this thread says rusticl is broken
https://www.svp-team.com/forum/viewtopic.php?id=3167&p=17
therefore disabling hardware acceleration, for now, makes svp work again
Already switched to AMD to enjoy it