Could not load file or assembly 'System.IdentityModel.Tokens.Jwt...... after CU8

Hi,

I am using SDL Trados 2021 Freelance. After installing CU8 (think I skipped CU7) I can't use Microsoft translator API due to this error:

Could not load file or assembly 'System.IdentityModel.Tokens.Jwt, Version=5.6.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.

Everything worked fine before CU7 (Well, I mean everything regarding MT Enhanced Plugin). 

Is there any solution to this problem? Is it possible to revert to CU7 or CU6 and how?

Kind regards, Boris