Actually, the "See running operations" box gives incorrect information. I am looking at one where the top says there are 3 uploads in progress for a total of 661.27 MB.
But the three uploads shown in the list clearly do not match that: they are 256.95 + 95.06 + 144.95 which adds up to a bit less than 500 MB.
Meanwhile the uploads progressed. Now the top says there are 2 uploads in progress for 501.15 MB, but the box actually shows 3 uploads going on.
This does not make for a reliable service.
Attachment 373