I have not edited or enhanced these files/videos. I have successfully uploaded many videos in the past. This started a couple weeks ago, approx.
I have not made any changes (intentionally) to my phone or my youtube account. No setting have changed that I am aware of.
My iMac and iPhone are up to date with all patches.
I tried searching but I cannot find a solution. Can you please help me? Thank you so much for your time!