I found this answer below for you my friend... pardon his English...
first: if you already submit your video and you try to make more editing in Title or Desc. the block-chain may already saved your editing but not respond to saving order. and if you click twice or more you will see these message. so try to open another tab and see if your editing saved or not.

second: if you see these message in upload page. Just wait 15 minute and try to submit it again. I save info about a video I already uploaded in Template file in case of my browser crash (If the video is too big and cant submit it in block-chain) and with little trick by uploading tiny video file and replacing its info with my original big video file info i can submit my original big video file in other time when block chain work.