Affinity Photo 1.9.3 freezes and crashes on OSX 11.3.1

[Klaus E.]

Affinity Photo 1.9.3 freezes and crashes on OSX 11.3.1 while using the paint and rubber stroke on all kind of images. I have attached one crash log for your info.

WindowServer_2021-05-12-100735_MacBook-Pro-2.crash

[Dan C]

Hi @Klaus E.,

Sorry to hear you're having trouble!

From your crash report, this appears to be an issue with Metal Hardware Acceleration and your GPU - can you please navigate to Affinity Photo > Preferences > Performance and untick Metal from the bottom of this dialog.

Restart the Affinity app as prompted and then try painting/erasing once again - does this stop the app from crashing please?

We'd also like a little more information about your document in Affinity, to see if we can replicate this issue here. Can you please confirm what a 'typical' document looks like for you in Affinity Photo? For example are you only editing 32/bit documents, are you editing very large canvases etc?

Many thanks in advance

[Klaus E.]

Hi Dan,

many thanks for your help. Affinity Photo no longer crashes.

I switched off the 'Metal Speedup' there and now everything goes much faster. This option should be disabled by default. 😀

All the best,
Klaus