Media Uploader add-on doesn't load pictures. Tried tons of times and it loaded from time to time 1 picture instead of more actually trying to be loaded. Also, tried from different computers - the issue persists for all machines. So, I suppose that the problem is in the add-on itself.
I had complains of my clients before that they had troubles loading pictures from time to time but before it started work properly in a few minutes but now the problem persists.
How can it be fixed?