I am performing the initial long upload of my local Photos photo library to iCloud photo library. However, when I leave my computer on with the Photos app open for a couple hours, my computer seems to try to logout and, in the attempt, it tries to quit Photos. when I return to my computer, I see the message:
"Photos" interrupted logout. To continue logging out, quit "Photos".
Unlike the help documentation that shows up when I type this error into google, I don't want my computer to sleep, logout, or shutdown. As such, I have my system settings set as such. (I have confirmed my computer is set to not sleep, screensaver, logout, or shutdown due to inactivity.) I am therefore confused as to what is going on here and need it to stop. I want to leave my computer alone for long periods to concentrate on uploading my photo library. This problem seems to prevent the upload from occurring.
Edit: It is very possible that this error occurs after a consistent period of time. However, All system settings are set to never sleep, screen saver, etc... So I don't know where said specific period of time is coming from.