I have a customer who asked me to upgrade his site to the latest version of Joomla 3.9.18 being that he is on 3.9.16.
Why do I worry? Well, I have the site set to remind me every day if the site has not been updated.
He told me that he could not update any components, so I investigated and found that the screen turns white when trying to update.
I then tested one of the components by just using manage/install and it updated fine.
This client has nearly every component known to man loaded so I am surprised that nothing was broken before this. (For instance, he has three form creation components, RS Forms Pro, Breezing Forms and one other.)
I suspect that one of the components or plugins has created the problem, but just putting it out there if anyone has encountered a white screen in the update area, but everything else including manual updating is working fine?
I read all references to white screens, and they seem to be related to a component or plugin, but the white screen was occurring elsewhere in the backend or frontend.