Hello.
Someone posted this several months ago, I found it in the pre 1.7 thread. It seems it hasn't been addressed, it still doesn't work.
I'm using Win 10, Affinity Photo version 1.7.1.404.
(Microsoft store version).
Here's the original post...
Using a full-size UK keyboard, arrow keys (up/down/left/right) aren't recognised when customising keyboard shortcuts.
In the below example, it won't allow the user to add the default keyboard shortcut back again (Alt-Right), as none of the keyboard arrow keys are recognised. In this situation the user would need to reset all the keyboard shortcuts back to default.