I think it might be tied to monitor refresh rates.
I currently have a workaround by displaying the match window on a 1080p monitor that runs only at a 60hz refresh rate, and displaying the primary UI in windowed mode on my primary monitor. My primary monitor is where I captured the issue...
No Game ID -- attached a video demonstrating the issue in solitaire mode. Also attached a DxDiag report that contains some Windows Error Reports related to MTGO.exe at the bottom of the report. I am unsure of what the extra parameters in the error reports mean.
Freeze occurs at 1:37
Video of...