That is weird, looked like you dc from choosing the world. Could you go into the control panel and uninstall mapleroyals then re install it.
If this is a fullscreen related problem you can always try to ALT + SHIFT (windowed mode) before it buggs out. It might help, it might not but its worth a shot.
ohh maybe changing the compatibility might work, for some reason that's a got fix for a lot of things. Right click the client > properties > compatibility tab > run in compatibility mode for > choose windows 98/ windows ME
'' Right click the client > properties > compatibility tab > run in compatibility mode for > choose windows 98/ windows ME '' I showed in the last seconds of the video I use this settings. Closing Raptr seems to fixed the problem
I didn't notice it. I have a similar problem with "AMD gaming evolved" but it flips the image so the mapleroyals screen is upside down, when it's active. Glad you found the problem