
Just gone to fire up the sim (steam)and getting these messages, any ideas?
I had this several months ago. I tried to ignore it and tried later. My fear was I might lose all of my data and progress if I chose poorly.
It never went away, so I eventually picked the newer one (my local copy), and everything seemed fine after that.
Haven’t seen it since.
Exactly my fear as well, I’ll follow your path on this tomorrow unless someone else replies in the meantime saying otherwise. Thanks.
In the properties (right mouse click MSFS) you will get this

When I have this issue, I always take my local save as the default, I know that that has been written successfully and contains all the info I need and in my head I map it back to when I logged off of FS.
I had this the other night. I always choose local.
I also went local, no further pop ups or any problems. Thanks all for your advice.