Backpack problems in BL2 on the handsome collection

On my main two characters for the Xbox One port of the handsome collection, my backpack is glitched. The stuff that I had in there before this glitch is now gone and when I pick something up it doesn’t show up in my backpack. Can anyone help me with this?

Check the sort order options (LT/RT), and make sure your inventory isn’t accidentally set to show only a sub-set that you don’t have any extras of. The total item count should still show correctly even if nothing is visible. If it’s completely empty (as in 0 out of 39 or whatever), then you may want to shift to the HC XB1 Tech Support category.