Affinity Designer 1.10.6.1665 Reboots PC when zooming in/out of images

[snaffo]

I've had this problem for months now that my PC reboots when I zoom in/out of an image. (CTRL + Mouse Wheel)

I'm running on a 4K screen editing a 1526x1926 image.

Windows 10 Home
i7-6700K 4GHz
64GB Ram

This has happened on many images. My guess is that there's some issue with quickly zooming in or out of an image (or both in quick succession) that spikes the CPU or GPU to the point where it causes the OS to reboot.

I can zoom in and out of images. I've become very timid working and I avoid it as much as possible and do so in very slow steps leaving a second between each roll of the mouse wheel. It's not a good way to work at all, but I need to get things done.

I have tried turning off hardware acceleration but that hasn't made a difference.

The issue can occur immediately, as in:

• Boot my PC
• Open Designer
• Load an image
• Zoom
• REBOOT

I may have also had this happen when moving the Designer window from one of my 1080p screens to my 4K screen and resizing the window to full screen. So the resize might also be doing something similar to a zoom (redrawing the image) and triggering the same effect. I've not had this happen in such a way that I can confirm it (I might have also performed a zoom at the end of this which caused the issue, not 100% sure).

[walt.farrell]

@snaffo

Welcome to the Serif Affinity forums. 

In general, issues like that indicate problems in Windows itself, or in your graphics drivers, or in the system hardware.

But in any case, the Windows Event Log should contain information about what happened to trigger the reboot. Have you checked it? 

Can you provide the Windows dump file that was created before the reboot?