Strange cropping and green lines on Canon r6 raws when exporting as jpeg/ 2020 iPad pro 11inch

Hi there.

I'm having a rather inconsistant issue with my photos when exporting from lightroom on my iPad pro. Some photos will export with artifacts like a whole line of pixels wasn't exorted correctly, leaving a green line and a grey bar on the bottom of the photo. Is this from the Canon r6 raws being so new and not supported yet? It's inconsistant on how it works and makes it really hard to use  Lightroom. 

Also when looking at my presets. I don't have any of the canon presests just Matrix. Does that have anything to do with it?