500 error when uploading multiple images to an issue

Hi there, I'm getting a 500 error when uploading multiple images to an issue. It actually does take if you go back to the issue. It gave me this code in the error:

1c053ffadc994da9b5009cf7d805ad3d$1e90218effe55a76c461327a12b0dcea

Steps to repro: Create issue
Fill in fields, browse and upload 1 image
Save issue
Edit issue
upload additional image
save

Note, also happens if I am trying to delete an image, I've previously uploaded, then save.