I have to admit this quirk in Affinity is wearing on me. I can work with a file, maybe for 5 minutes, maybe an hour. Sometimes, not every time but often enough to be maddening, a change I've made to the file will suddenly disappear. Without an action from me. Last time an airplane placed on its own layer, suddenly decided to change to greyscale from color. Not a major thing but frustrating. This kind of thing happens frequently enough to be a problem. Happens both on iPad and my MacBook.
Why? Thoughts?