Market Place Version Update

Hello, since yesterday after the market place opens I tried to buy an update for my version of the MSFS2024.
The first Question does anybody know if I can update my version, that was bought on steam and is started via the steam libary, via the updates sold in the ingame market place. The Other option would be to wait until some day the updates show up within the steam store. Whenever this may be :frowning:
The second thing is I was not able to purchase anything because as soon as I go to buy I got this anoying waiting circle animation that goes on forever. Not tried longer than 30 Minutes so. The game was not responsive and I had to ALT-F4 out of it. Before I tried the purchase I had switched the sim coins off in my wallet within the simulator.
Any ideas how to proceed besides, again, doing a lot of waiting for MS to fix it eventualy ?
Regards