ZOOM Q8 software downloads video to hard drive. Load video on to Movie Studio 14 Platinum, go to Make a movie. 1 hour video, uploads to youtube or pc for about 3 hours then crashes. get error message, uninstalled quicktime, and reinstalled version 7.7.9, and still does same thing. I have uploaded at least 50 videos prior, now it does not work...

Movie Studio 14 Platinum

YouTube changes its APIs regularly. Your version is two years old.

Download the latest MSP 16 trial and see if it takes your credentials.

Or just upload to YouTube on their site and relax.

I am splicing 4 videos together into one with Vegas... it won't upload to youtube like I always do for my daughters rock band (it did last week and I did not change anything, now it wont) I should not be forced into buying the latest version to upload a video.

Post file properties for one video that won't upload--beyond that, I can't help you.

https://www.vegascreativesoftware.info/us/forum/faq-how-to-post-mediainfo-and-vegas-pro-file-properties--104561/

I don't work for Magix, so I'm not being paid to listen to complaints.

MSP 16 has a trial version. At least it might tell you if it is YouTube API , or your sign in. Might.

Or just upload to YouTube on their site and relax.

If it worked before, at least try resetting. Follow closely the steps in this post.

( I just successfully tested uploading a short project to YouTube from MS 14 P build 148 with the standard Make Movie to YouTube procedure.)