Alt+enter = CTD

Hi guys, I’m encountering new CTDs with MSFS. Sometimes, MSFS deliberately reduces the screen, creating two black bands on top and on the bottom part of the screen. If I try to enable again the fullscreen view by selecting alt+enter, I get fullscreen again but then, just a second after, I get CTD. Anyone experienced that and has a solution? Thanks in advance

Alt & Enter does nothing for me anymore, very odd

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