Serum demo version crashes.

Wanted to try demo version of serum, but when i open up any presset, after some time it crashes.
Plugin is disabled because of an error during processing.
I use latest version of FL studio 20.9.2.
Debugging log says:
Serum says: "Serum" crashed while processing. Disabled.
Serum says: EXCEPTION (Gen_Render) Access violation at address 000000002457F231 in module 'Serum_x64.dll'. Read of address 0000000000000011
I tried some things like shutting down antivirus, reinstalling serum deleting some files, but nothing helped. Is there any ideas where does this problem come from and how to fix it?

The demo does expire after 20 minutes per use. That isn't an issue which comes up in the full version. There should be an updated demo version at some point.

The demo does expire after 20 minutes per use. That isn't an issue which comes up in the full version. There should be an updated demo version at some point.

The main reason why i bothered, that this happend instantly or near just a minute after i started. I knew about 20min limit but this definitely not the point of this problem. I tried to find a decision but seems like at forum were nothing similar before.