Hey, thanks for your quick response.
First thing I did was to change the resolution to 1920x1080 and actually, I did record the first bit I played, but then I stopped the recording and restarted the application. Second attemt, I didn't record this time, but it didn't seemed to help. However, I didn't change the resolution though. So I'm gonna try that and give it another go then.
I still have the recording if you wanna see for yourself.