I've been having a problem on Affinity Photo on my Windows machine. Usually when I am moving a slider (this can be in the Develop or Photo Persona, the screen will go blank and Windows will reboot.
I'm running Affinity Photo 1.8.5.703 on Windows 10 v20H2.
The machine is a Ryzen 3400G home built on an MSI B450I Gaming motherboard, 32GB RAM, and I've updated the BIOS and all drivers. I'm using the 3400G's integrated Vega 11 graphics.
No other program has ever crashed this machine: MS Office/Word/Excel, Firefox, Chrome, Brave, Luminar 2018, DXO Photolab, Oracle Virtualbox.
Anybody have any ideas? It seems confined to AF. It happens probably once every 1-3 editing sessions - often enough that it is very aggravating and I have to save often or lose my edits.