SuperSTOL

Oh, it wasn't part of any process, just sheer curiosity to explore the MCDU functionalities during an long transoceanic flight.

Well, I remade a series of test, and apparently what went wrong was after the date was set back to "real time" and I pressed "REF" then "A/C status" on the MCDU. Everything froze at that moment.

I fear it is only a half fix. I had the instruments freezing mid-flight just when the clock struck midnight (while I used the workaround aforementioned).

Yes, this is a known issue since the 24th. They already fixed it, but we need to wait for Microsoft to publish the update.