I'm glad this happened now. I've just been testing whether I could use the iPad Air 2020 and the mobile Lightroom and Photoshop apps in any kind of professional workflow. Absolutely not. All work was lost on that file. Lucky it was ten minutes of testing and not hours of actual work. Never had a corrupted file in 15 something years of Photoshop on the desktop. This was psdc-file one out of three, and I'm done testing. Check back in five years or so whether PS mobile becomes a professional tool or not.