Degenesis is community-created, and probably not a Roll20 bug issue. I cannot see any images on a test campaign created on my end using that sheet, so my guess is that it is likely a sheet issue. The author of the sheet is listed in the wiki as Nicolas M. (Thalar), who has not posted in over a year. He may still be on Roll20, but not posting, so you could try a PM. Previous threads about this sheet are here and here . EDIT: Images just appeared for me. It may be possible that this was a temporary issue. Are you still not seeing them?