The password reset requirement some of you experienced earlier today was for your Adobe ID and not specific to the Adobe Stock Contributor Portal. It is necessary to change your password from time to time to ensure your account remains secure.
Some have reported the sign in page continued to recycle and would not allow a password reset. This was my personal experience also. To work around it, I opened the Creative Cloud app and signed out there. This prompted the password reset and all was well. If you don't have the Creative Cloud app installed but you are experiencing the recycled login page issue, try visiting Adobe.com to sign out and sign back in.
Kind regards,
Mat Hayward