Hi, I'm having this same issue when trying to save HEIF using CIContext. Have you been able to find a resolution to this issue? Thanks,

I was having this same problem and I fixed. My project is localized to different languages. In my infoPlist.strings files for each language I had CFBundleShortVersionString localized. This was causing problems when uploading a new build to my device & simulator. I removed this and moved it to the main info.plist. CFBundleShortVersionString$(MARKETING_VERSION) This shouldn't be localized. This worked for me. Hope this helps :)