M-Files/Docusign Integration - How can I change the Account that the integration is using?

Hello!

I'm having trouble changing the Docusign Account that the M-Files/Docusign integration is using (and has been using for the past few years).
We have our integration user account that has access to 2 different Docusign Accounts under our organization, and right now the integration is setup on Account "A" but we need to switch it to Account "B". 
I have tried changing the default Docusign Account of that user to Account "B" and tried to reauthenticate through M-Files Admin (the User ID is the same) but it didn't work (the integration is still running on Account "A").

Any help would be appreciated.

Thanks,
Christos Mouskos