Win 11 app crash "Null strings may not be marshaled...

[3579mike777]

HD Homerun Prime with Xfinity cable card. Was working fine yesterday, now the Windows app crashes with this message "Null strings man not be marshaled in Windows Runtime arguments. Parameter name: sourceString" Android apps, no problem. Firestick app no problem. Google TV OS, no problem. Other Windows 11 computers seem to work okay, including one I'm using for DVR. Only my desktop is messed up.

[nickk]

When do you see this error (what actions led up to it)?

[3579mike777]

I fixed it by installing a "preview update" of Windows. Normally I don't install the preview updates, but this time it worked.