Are you using the back button to add more and more? I believe this is because we have the date pre-populated onto the form under metadata, which now I think about it is not a good thing.
I'm going to mark as fixed for now because I think I fixed this during the week, and I just fixed the back-button issue I found. Please reopen if you don't agree.
(Click to enlarge)
#2461 - Sorting by added issue
a) You've done a pull in the last day or so
b) The entries have different listed add times when you view them