Running into this issue after upgrading from 4.7X. Crashes on launch with this in the logs.
19:29:01.42 1/29/2021: Error. Exiting
19:29:01.42 1/29/2021:
19:29:01.42 1/29/2021: File signature incorrect.
19:29:01.42 1/29/2021: at LibAPNG.APNG..ctor(Byte[] fileBytes, Boolean CreateFrameForSimplePng, Device Dev)
19:29:01.42 1/29/2021: at Direct2d.Surface.LoadSurfaceWIC(String Filename, Device Dev, MemoryStream ms)
19:29:01.42 1/29/2021: at Direct2d.Surface..ctor(String Filename, Device Device)
19:29:01.42 1/29/2021: at PinballX.FrmMain.RestoreSurfaces()
19:29:01.42 1/29/2021: at PinballX.FrmMain.InitDisplay(Boolean FullScreebWindowed, Boolean InitialLoad, Boolean IsIngame, Boolean WasLost, Boolean NoLog, Boolean CalledFromSelf, Boolean DontDisposeBlackForm)
19:29:01.42 1/29/2021: at PinballX.FrmMain..ctor()