(I’ve moved this to a new thread since Litchi - Testing Panoramas was specific to Litchi Panoramas.)
I’ve never had issues with ICE stitching images except when, like with any stitching software, there’s no identifiable detail (although, I know a way around this, and must write the How To on it - and, from images, one gets higher res and RAW images that can be processed far more then video can be.
Neither will you match the quality of the Hi-Res panoramas that the M2P/M2Z take, or (for those on iOS) ones taken using Hangar360.