Windows 10 64bit, and Edge browser in MC for me.
I've just logged in now for the first time in years. I'll try and have a play over the weekend. Maybe the login remembrance has changed since the last time...
Didn't there used to be a section where saved views could be downloaded?
In the 'customise view' tool, when you choose 'Save View' there's the option to 'also save to shared views server' ....Found them, under Settings... fairynuff, now I know where they are
I'll keep an eye on this and report if my credentials get asked for again...