Hi there. Not sure if I can find help with it, but want to share my frustrating experience.
While working with mutilayered file in Affinity Photo 1.8.5.703 on Win10, I established 3 correcting layers in separate folders - Shadows Highlights Halftone.
Shadows and Halftone folders had corecting layers inside (1 and 4 on screenshot) and Highlights has a filled with yellow paint layer in soft-light mode with mask inside (2 and 3 on screenshot) Last time I worked with this file was yesterday. I checked the results of my work and saved it. But when openinig this file today I found the layers 1 and 4 was completely black, all hand painted mask disappeared, layer 3 was light gray instead of yellow like before. But mask (3) is ok. I exclude the possibility of accidental or malicious damage - nobody switched on my laptop since yesterday, I checked this layers before closing and I can't believe that I could damage (eg fill with black) accidentally all three layers simultaneously. So, I assume there is a some bug in program.
PS I tried to find any possibility to restore previous versions of file and found that there is no autobackup option in Affinity, although there are user's requests of this option on forum from 2018. Instead of that there are recommendations to save manually. Well, thanks a lot.
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