This is really annoying and I don't know what's the issue. I was recording about ten minutes how I do something in an app so the recording sources were a window and microphone. In the result however about 10% left and right sides were missing! I tried to manually shrink the red rectangle and this helped but I had to try many times to find the right size so the resulting video would contain whole image! I thought maybe something's wrong with the window capture or the windows display settings zoom of 125% is interfering with it, so I set it to 100%, but nothing changed. I also tried recording full-screen instead of a window but it behaved the same! I could see it just find in OBS preview but in the result it was cropped from sides. Why is this happening?