On my ArcGIS Online organizational account, I am unable to alter the sharing permissions for any of the AGOL content I have created. This seems to be a new issue, as I created a web map last week and was able to change it from private to Public (Everyone), and now today, when I click on the Share icon, the menu that appeared last week with those options does not appear anymore. When I click on the icon, nothing happens.

I tried clicking on the sharing icons for other content I've made in the past, and it's the same issue. I have also tried signing into that account from multiple browsers (Firefox, Chrome, Edge), restarting my computer, and clearing my Firefox cache & cookies, all to no avail.