SQL Developer Kerberos authentication after upgrade

Dear

On OSX Catalina I had a working version of SQL Developer with Kerberos authentication towards an Oracle server.
After upgrading towards Big Sur,
I get:
" IO Error: The service in process is not supported. No valid credentials provided (Mechanism level: null) "
(also sql developer itself didn't opened but was able to resolve that) , the Kerberos issue at the other hand I currently have no clue what is causing this. Support in resolving this would be greatly appreciated, thank you in advance!!

Kind regards
SQL Developer Kerberos authentication after upgrade
 
 
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