Updating receipts attached to an expense

[cschwendi]

Are their limitations with when the images of receipts attached to an expense can be updated? I submitted a request with one receipt attached. Then I remembered there was another, but I could not attach the image. Next the bishop approved the request and payment sent by EFT. After that I could attach the missing receipt. Somehow I ended up with multiple copies of the receipt. So next, I tried to delete the extras. There is a "delete" option on the image, but that doesn't seem to do anything.