Quicktime screen recording pixelated on export

[laurenw28222183]

Hi!

Trying to export a video that includes 4K footage I shot myself as well as some screen recordings I did through Quicktime. When I export (using H.264, Match source -- High bitrate), the screen recording looks super pixelated? Any advice on how to fix? 

[laurenw28222183]

Nvm solved!

[Andrea29070650b0fy]

Hi Lauren!! 
Could you please let me know how you resolved it please? I'm experiencing the same issues.

thank you!!