Publisher 2.5.7 (beta 2.6.2.3228): live filter clarity causes viewport artifacts in higher zoom levels, max CPU usage

[4dimage]

I found this by accident in a real project. The same behaviour applies to the current beta 2.6.2.3228. No matter if OpenCL on/off.

2.6.2. beta simplified testfile:

2025-04-14-beta-2.6.2.3228-bug-livefilter-clarity_1-1.afpub

I zoom the workplane in and out with the mouse wheel. As soon as the live filter is applied to the background image, the app shows blurred forground objects (text) when the zoom level exceeds a certain value.

Furthermore, as soon as the the artifacts appear, the CPU usage gets very heavy, up to 100%.

When i turn off the live filter again the viewport error disappears. This behaviour is 100% reproduceable.

--- EDIT ---

My performance settings:

 

[Old Bruce]

For what it is worth I see the same thing on my Mac. Could even be worse. I don't see this happening with Photo. I also see a reduced spike duration for the CPU while using the Photo Persona of Publisher, still much higher and for much longer than just in Photo.

26 minutes ago, 4dimage said:

... the CPU usage gets very heavy, up to 100%.

I am seeing 97% on my Mac.

Here is what I have set on my machine

[NathanC]

Hi @4dimage,

Can confirm I've replicated this issue using multiple sharpening live filters and logged it with the devs, thanks for your report.