Hi there! Having the same issues as you guys, I cannot access my library, nothig is working at it should after the update to 4.3.
My site is a cinema web, and we are losing a lot of readers because of a problem we cannot solve until they give us another update to solve the disaster they have made.
Reading I discover that the main problem is not that the media library does not work, the problem is that the amount of space use for our plugins, images, videos and so on is doubled by something they have put in the upgrade, that is why when you disable plugins you get to see the library fine, but is not a permanent solution, cause you will need to disable more plugins each day.
This is a nightmare, but I guess we will have to wait.
If you know of any kind of solutiom I will be truly grateful
Thanks