Open Affinity photo 1.9 loads up, chose new document, click A4, affinity closes, try to open jpeg Affinity Photo opens and immediately closes.
What have you done?
Uninstalled, clean out temp files, restart computer, download Affinity Photo 1.9 install with name and serial number, try the above, same happens!
Can't find who said they had done this, but open device manager, select Display Adaptors, Uninstall display adaptors, close Device Manager, close windows and restart computer, check display adaptors, mine both reinstalled, Intel (R) HD Graphics 4600 and Nvidia Geforce GT 750M. working like a treat.
I suspect windows updates.