Affinity Photo 2.1.1, tiff files not displayed any more

[Joggl]

Hello, first of all, I have to say this is not my favorite language. Pls be patient....after updating Affinity Photo 2.1.0 to 2.1.1 unfortunately tiff files won´t be displayd in windows preview and other software isn´t able to open the file any more. I can´t solve the problem. In Version 2.1.0 there wasn´t any problem to export the picture. Tx for help

[walt.farrell]

Welcome to the Serif Affinity forums.

Have you made any changes to your Export settings? What Export settings are you using?

Can you share one of your exported TIFF files?

[Joggl]

Hello walt.farrell, thanks for answer and helping. No I didn´t change the export settings at first. Tried then without compressing (as Zip) and it was displayed in windows viewer again. Then I read about changing the GPU driver and tried out - and it worked again for other software. I found a broken file, but it´s about 156Mb (export settings were 32bit, but the proberties say 96bit). But anyway there is the same odd thing about webp files. After export into webp it changes darker in Windows. Well, I know, I´m using a very old system, but it´s still working well till now. AMD FX(tm)-8320 Eight-Core Processor at 3.50 GHz, 16Gb RAM, GPU Nvidia Geforce GT730 (guess that´s the problem), Win 10 Home.

Thanks!

SN2023ixf-M101.tiff

[AlainP]

Windows can't open your file here too. But I opened it in Photo and exported it in tiff again and now Windows can display it.

Must be something on your side.

[Joggl]

Yes, correct. This was the problem before. It works again. I guess it was the display driver.

[walt.farrell]

I'm not sure how a display driver could cause that. But I can't find any other explanation.

 

[David in Яuislip]

That's quite a dirty file, the only program I have that will open it is Photo V1
Saving it as an uncompressed tiff:
  45,974,774 SN2023ixf-M101-APnocomp.tiff
163,924,042 SN2023ixf-M101.tiff

Clutching at straws I would turn off hardware acceleration and if that doesn't work I'd set the renderer to WARP

[walt.farrell]

47 minutes ago, David in Яuislip said:

That's quite a dirty file, the only program I have that will open it is Photo V1

Photo V2 also opens it.

[R C-R]

12 minutes ago, walt.farrell said:

Photo V2 also opens it.

Same for me on my Mac. In fact, it seems to be just a simple 1 layer Pixel file, with the only unusual thing about it I can see is it is 4800dpi & 4793 px by 3196 px, so quite small at "Actual Size."

[David in Яuislip]

Exiftool reports:
Creator Tool                     : Astro Pixel Processor by Aries Productions - version 1.083.4
History Software Agent  : Affinity Photo 2 2.1.0
So was it started in Photo then mangled with Astro Pixel? I've never seen 4800dpi before
No wonder I drink...

[Joggl]

I'm using AstroPixelProcessor for stacking at 4800 dpi at first. Didn't know this causes dirty files....I guess the problem was caused by zip compressing in exoirt setting in Photo - curious: I never changed the setting.

Tx for help

[walt.farrell]

40 minutes ago, Joggl said:

I guess the problem was caused by zip compressing in exoirt setting in Photo - curious: I never changed the setting.

Zip is Affinity's default, I think.

And Zip does not cause the problem; it's more than that. It might be the 4800 DPI, or something else. But File Explorer is quite happy showing thumbnails and Previews for other TIFF files that use Zip compression.