As if you have already done all those troubleshooting and didn't get rid of this, better open a TAC case. I faced the same issue earlier while changing the password and didn't follow the right procedures, but I hope you haven't done the same.
These are the paths to get to each CCX logs through CLI. They may be helpful if you are having issues accessing RTMT or downloading logs through it.
If you want to download them you have to prefix "file get " and you can add one of the options (re...