Colour Chooser Displays Incorrect HSL Values When K100 Entered in the Colour Panel

[Hangman]

There is a discrepancy between how Windows and Mac display HSL values in the HSL Colour Panel (Sliders and Wheel) and Colour Chooser when K100 is set in the Colour Panel using the CMYK Sliders...

With K100 set in the Colour Panel for Fill or Stroke, when viewing the HSL Colour Panel (Sliders and Wheel) the values always appear incorrectly as HSL 0, 0, 0 on Windows and appear with the correct values on Mac...

CMYK Sliders Set to K100 | HSL Sliders - Mac Left, Windows Right (FOGRA39 Document Colour Profile)

 

CMYK Sliders Set to K100 | HSL Wheel - Mac Left, Windows Right (FOGRA39 Document Colour Profile)

CMYK Sliders Set to K100 | Colour Chooser - Mac Left, Windows Right (FOGRA39 Document Colour Profile)

Note: The Colour Chooser shows the colour selector 'dot' in the main colour well at S0, L0 on both Mac and Windows which is incorrect for both... Clicking the 'dot' changes the CMYK values for FOGRA39 on Windows and Mac to C:89, M:78, Y:62, K:97, i.e., the correct CMYK values for HSL 0, 0, 0 but the 'dot' shouldn't be positioned at S0, L0 in the first place when K100 is set using the FOGRA 39 (or any) profile, it should be set at S3, L11...

Summary

1. On Windows, the HSL values for K100 are always shown incorrectly as HSL 0, 0, 0 in the HSL Slider and Wheel Colour Panels but correctly on Mac.
    
2. On both Windows and Mac, the position of the 'dot' indicating Saturation and Lightness values in the main colour well is incorrect on both Mac and Windows in the Colour Chooser.

[Dan C]

Thanks for your report @Hangman & our apologies for the delayed response here!

I can confirm I've been able to replicate these issues and I've logged them with our team for you now.

I hope this helps

[Hangman]

Thanks @Dan C, much appreciated...

[Affinity Info Bot]

The issue "[Win] Colour Chooser shows incorrect 'node' location for 0/0/0/100 (100K) black" (REF: AF-4018) has been fixed by the developers in the latest beta build (2.6.0.2805). The fix is planned for inclusion in the next customer release.
Customer beta builds are announced here and you can participate by following these instructions.
If you still experience this problem once you are using that build version (or later) please reply to this thread including @Affinity Info Bot to notify us.

[Affinity Info Bot]

The issue "[Win] 0/0/0/100 (100K) Black reports incorrect HSL values in the Colour Studio / Chooser" (REF: AF-4017) has been fixed by the developers in the latest beta build (2.6.0.2805). The fix is planned for inclusion in the next customer release.
Customer beta builds are announced here and you can participate by following these instructions.
If you still experience this problem once you are using that build version (or later) please reply to this thread including @Affinity Info Bot to notify us.