Display and Export Bug in Photoshop 25.12.0

There is nothing wrong with the finished result. But the preview can be misleading when you are not viewing at 100%.

This is caused by the sharp lines/texture in the image, effectively turning it into a binary image with only black or white pixels. The problem is that all layer blending (and adjustment) previews are calculated on the basis of the on-screen image.

Zoomed out, that's a downsampled version of the image, and that introduces a lot of intermediate values that are not really there in the full pixel data. When the layers are merged and the blend mode realized, the calculation is performed on the full data.

Using these cached images for preview calculation is for performance reasons. Doing the full math every time would slow everything down.

View > 100% in Photoshop has nothing to do with size. It means one image pixel is represented by exactly one physical screen pixel. And that's what the preview calculation uses.

This is why you should always check at 100% before committing, whether blend modes or adjustment layers. 100% view will always show you a correct preview. That's what the finished result will look like. Pressing ctrl+1 for 100% view should be an automatic action, muscle memory, whenever you have noisy or binary images.

Issue: Color Burn Layer is not displayed properly and not exported.

Provide Photoshop version: 25.12.0 20240903.r.806 055f5e9  x64
Provide OS and version: Windows 11

Issue: Provide good steps to reproduce the behavior:
Step 1: Open a new RBG document
Step 2: Place image on canvas and add a red elipse.
Step 3: Set blend mode to color burn
Step 4: Export; The elipse is not shown.


Expected result: Photoshop should display the elipse and export it.
Actual result: Photoshop does not display the elipse and export it.