Round brush becomes square when toggling the color with X

[CaroleA]

As I was searching for a way to toggle the foreground and background color, I was told to use X on the keyboard. That works fine but as I was playing with it, I drew a continuous brush stroke WHILE toggling the color with X. I was surprised that the round brush tip would create square "transitions" between the two. Someone using Mac tried and didn't get the same result, but someone else using Windows did.

This is what the transition looks like:

I am using Windows 10, and this behavior is the same in Affinity Photo 2.5.5 and 2.6.

Since someone using Mac does not see that "effect", I can just assume it is a bug.

I get the same result with the Hardware Acceleration checked and unchecked.

[Hangman]

Hi @CaroleA,

I can confirm the behaviour on Windows...

It's not actually possible to toggle the foreground and background colours while painting with the brush tool on Mac so I'm unsure which is the expected behaviour but this does look like a bug...

Someone in the moderation team should pick up your post and log it accordingly...

[Callum]

Hi CaroleA,

Thank you for your report I have logged this with our developers to be fixed in a future update.

Thanks
C

[Affinity Info Bot]

The issue "[Win] Pressing X to swap colours while brushing creates squared brush stroke " (REF: AF-5210) has been fixed by the developers in the latest beta build (2.6.0.2984). 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.