A few weeks ago I changed my password on my google + account. Every since I did that, I can log into all my accounts; google, youtube, and Microsoft...

BUT when I want to upload a video to YouTube, it will not recognize my password. I have everything correct and would like to get this issue resolved. I already lost an old account by accidently deleting it and had to start a new Youtube account just to upload video's again. I don't want to start a new account again. What can I do to sync or get the program to recognize my password?