Affinity Designer: 1.7.1.404 (latest from website).
Bug: Save still disabled after moving a vector graphic using the arrow keys.
I discovered this after download 1.7.1.404 and opening up an existing graphic file, i had group of vector objects i just wanted moving by 1 up arrow key press.
I highlighted a grouped set of vectors, i pressed the up arrow key to move it by 1 click, and the File->Save and save was disabled. I checked the transfer tab option by bottom right and it had moved it but document wasn't showing modified.
I checked to see if this happened from a new file, i replicated it very easily:
File->New : accept defaults.
Drop 2 rectangles on the canvas, overlay one offset over the other, give each one a different colour and save.
File->Save document and close Affinity Designer.
To see the issue:
Open Affinity Designer, select the recent document we've just saved and click on one of the vector rectangles, click up arrow once and look at the File->Save menu, although i'd moved one of the rectangles it doesn't enable the File->Save option.