One other person has reported that issue recently as well, though I’m not sure the solution yet. You should consider reaching out to Dreamtonics at [email protected].
I had the same problem with version 1.9, reason was my AntiVirus program (F-Secure DeepGuard) which prevented some suspicious looking activity. I solved the issue by adding synthv-studio.exe to the list of programs that AntiVirus doesn’t check against harmful content.