We ended up reverting the .mds file changes in our Git repo to get the original string values back, fortunately we'd not changed much else in there, that we couldn't quickly replace after downgrading the software.
I'm not familiar with the software and wouldn't be as a DevOps Engineer, but we do help a bit on the integration/DevOps side for it, had maybe a year with it, our testers are much more familiar, but in my experience so far I feel the comms could have been better, been left in the dark a bit on the fix progress or confirmation of the issues.
The Azure DevOps test adapter issues in August were much more impactful, had a very dirty fix/bypass for that.
On another note some initial testing of v15.57 on my side, it seems the Base64 encoding issue might be gone, or at least I couldn't recreate it like before, but this was only a quick test I had.
We'll still be treading a bit carefully with the new version, with most testers sticking on v15.55 for now.
