Hi!
I have loaded BBCSO Core Strings (five tracks) in one Instance and Halion Sonic SE in second Instance. Now when I want to clean the sandbox and unload unwanted Instance where there is only Halion Sonic SE, VEPro crashes. Then I start it again, try to do the same, it crashes again. Everything else is working perfectly.
Windows 10 Pro 21H2
Cubase Pro 12
VEPro Server 7.0.1120
If I do Delete All Instances, then it removes both Instances without any problem and I can continue working.