SEHException (0x80004005) in CultureData.GetLocaleInfoCore

Hi, I'm trying to figure out an issue that someone's encountering when using a desktop (avalonia) app I'm a contributer of. From what I've managed to gather, they get an exception when the constructor of the XmlSerializer type is called. This exception simply crashes the entire program, even though there is a try-catch around the main function. TaskScheduler.UnobservedTaskException does set observed, but I haven't been able to verify if it was called in the first place (don't think async Tasks used like this sohuld even trigger this). ^Edit: I can verify it isn't being called. I've searched for the issue and couldn't find any meaningful results. I've had them try a self contained build based on .net 7, .net 8 and .net 9 with the hope it's a patched bug, but no success. The stacktrace can be found in the attached images, sorry I can't give a text version 😅 Link to the surrounding source code: https://github.com/TheMulhima/Lumafly/blob/0d296a46ece47ddd35d1640dcbf666ef3a53df08/Lumafly/Services/ModDatabase.cs#L116