Bug Report : Filter Gallery not applying effects | no history entry – Photoshop 27.6.0

Hello Adobe Support Team,

I am writing to report (in the right section this time, sorry) a reproducible bug in Photoshop 27.6.0 affecting the Filter Gallery feature.

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SYSTEM CONFIGURATION

- OS: Windows 10 Home (fully updated)
- Photoshop version: 27.6.0 (latest)
- GPU: NVIDIA GeForce GTX 1050 Ti
- GPU driver: latest available
- RAM available: 12,034 MB (Photoshop allocated: 8,424 MB / 70%)

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BUG DESCRIPTION

When applying any filter through Filter > Filter Gallery, the filter has no effect whatsoever — neither in the preview pane inside the Filter Gallery window, nor on the actual image after clicking OK. No entry is created in the History panel, as if the operation was never executed.

This behavior is consistent and fully reproducible.

Notably, other filters (such as Gaussian Blur and Add Noise) work perfectly under the same conditions, which suggests the issue is specific to the Filter Gallery engine.

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ADDITIONAL OBSERVATIONS

- The Filter Gallery window opens correctly and displays all filter categories and thumbnails normally.
- The "Preview" checkbox, which should normally appear in the Filter Gallery window, is absent — suggesting the rendering engine for the gallery is not initializing properly.
- The issue reproduces on both existing documents and brand new files (File > New, filled with color).
- The affected document is a standard RGB 8-bit, single flattened layer (Background layer, locked) — no smart objects, no adjustment layers, no unsupported color mode.

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TROUBLESHOOTING STEPS ALREADY PERFORMED

All of the following have been tested without resolving the issue:

1. Verified color mode: RGB 8-bit (Filter Gallery is not grayed out or disabled).
2. Verified layer type: standard Background layer, not a Smart Object, not an adjustment layer.
3. Disabled OpenCL: unchecked "Use OpenCL" in Edit > Preferences > Performance > Advanced GPU Settings.
4. Disabled GPU Composition: unchecked "GPU Composition" in the same Advanced GPU Settings panel.
5. Tested with GPU acceleration fully enabled and fully disabled ("Use Graphics Processor" toggle).
6. Tested on a brand new document to rule out file-specific corruption.
7. Tested all available filters within the Filter Gallery — none produce any result.
8. Used the "Repair" / file verification option via Creative Cloud Desktop.

None of the above resolved the issue.

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I would be grateful if this could be escalated to the engineering team. I am happy to provide screen recordings, additional screenshots, or any diagnostic files upon request.

Thank you for your time.

michael zannier (Label Vu)
michael.zannier@protonmail.com