Affinity Photo 2.4.2 - crashes when converting format (RGB/8 -> 16)

[pfi]

After a successful Focus-Merge I attempted to convert the Document>ConvertFormat from RGB/8 to RGB/16.

In 7 attempts (each time with different images) to convert, APh crashed 5 times, crash reports are attached.

Hardware acceleration is disabled.  My hardware and OS, see signature.

No further editing was done before the conversion attempts. When restarted, APh re-loads one image.

I have seen these crashes on different APh versions, and as far as I remember, these happened in combination with focus-merge (many of the APh crashes that I have observed, seem to happen after a focus merge).

dd884b5b-69a7-44f3-8612-e142107a1d78.dmp 818c90e9-d1e0-4dbd-9d09-79855259ec38.dmp 661c8fbd-b1b3-4068-b6b7-e554ce6887cc.dmp 40f14d60-062b-45a9-bf19-783deead003a.dmp 6c3f054e-e580-46d6-aebb-60ca9f4fd812.dmp

[Lee D]

@pfi Are the crashes only occurring with images processed through Focus Merge?

If you just open an image and switch the colour profile does a crash occur?

After the Focus Merge completes can you use File > Save and if you then reopen and try changing the profiles does the app still crash? If you can save to a .afphoto file, can you provide a download link to one of them?

What's the format of the source images and how many are part of the focus merge?

[pfi]

Yes, these crashes, as described above, have only occurred after focus merge.

What I do now, is focus merge images, safe the merged image as jpg, reload the image and then do the RGB/16 conversion. and that works fine.

I have saved the .afphoto file and I cannot get it to crash when converting to RGB/16.

Source images are JPG, from a Nikon Z7