I've been tasked with updating an app that has run into an issue on the new Mac OS.
The window loads but then I just get a black screen. There aren't any errors in the debugger, no crash, just a black screen so I don't have much to go off of.
Everything seems to work fine in 10.11 and 10.12.
I'm not the original author and I don't know Xamarin well, but I know enough C# to work with it. Any suggestions on where to even begin would be greatly appreciated.