nikita-dobrov

Hi, I just encountered the same problem. My mac shutdown by itself due to a faulty thunderbolt hardware while HX Edit was open and after that I started to get the same error message. I fixed this by closing HX Edit and deleting ~/Library/Application Support/Line 6 folder. It looks like HX Edit files were corrupted when my mac crashed. After I opened the app again and logged in, I could upload purchased IRs to my Helix without any problems. I hope this helps. For windows the steps should be different, most likely the whole HX Edit app needs to be uninstalled and installed again.