I've been running into this issue too. I confirm that he password is correct by using Remote Desktop Connection to remote to it. I have two VDIs. Their passwords match, only the user code is different. One works, the other gets this error. Other than the user ID being different, everything defined in the credential is the same. I can remote to either BOT using the password. I copy and past the password over and over and Blue Prism fails on one of the BOTs and works on teh other. while remoting to both works using the same copy-and-pasted password for all.
Something's screwed up.