I just used the website gridcalculator.dk to create a design grid and export it to AI to open in Designer (or Photo). But when opening the created file Affinity immediately crashes and directly closes the software.
Not sure what's wrong here, if it's a problem inside the AI-file or something Designer doesn't like inside the file. Can't see if this file works within Illustrator. And I obviously cannot view the file in Designer to see what's wrong, because the software kills itself on opening. But at least Designer is not suppose to crash on opening a file.
Here is the link with my exact settings: http://gridcalculator.dk/#/1080/12/20/20 .
The AI is in the attachment.
grid.ai