Downgrade from 2021 to 2020 license

Hello,
I’ve bought Sketchup 2020 (+Vray Next) lifetime license from my local seller, back somewhere in 2020. First I was using it mostly for renders using Vray Next. Last years I was focusing on working mainly on Layout. Somewhere in 2020/2021 I’ve received email from my local seller to upgrade for free to 2021, so I did. Now I want to get back to use Sketchup+Vray, but I see Vray Next is no longer supported for 2021 and up. Is it possible to downgrade my licensce to 2020 so I can use it with Vray Next, considering its lifetime license? Thanks for help.

If you didn’t uninstall version 2020 it should still work.

I’ve lost access to computer where i had 2020 installed, need to install it on new one…

There is something I can do that might help. I will send a message to you.