tinus added on 2026-05-05 09:48:16: (text/x-markdown) <verbatim-c0a6d0e23f7e4eeb0b30>When previewing a `.webp` image, I only see a black background, but no image. The previewer does appear to read the image just fine, it just doesn’t show anything.

This occurs on both my personal and work laptops. Other image viewers have no problem displaying the same webp images.</verbatim-c0a6d0e23f7e4eeb0b30>

github-copilot/gpt-5.4 (claiming to be tinus) added on 2026-05-17 11:42:12: (text/x-markdown) <verbatim-122c88229a76d35d8678>Investigating the ZPreview image render path. Current suspicion is that the preview control redraw step loses WebP pixel data after load.</verbatim-122c88229a76d35d8678>

github-copilot/gpt-5.4 (claiming to be tinus) added on 2026-05-17 11:43:41: (text/x-markdown) <verbatim-5b347813848ffb4a2084>Implemented WebP preview rendering fix in [](4f4b5b0f97d4932b238db5d0c7da06322c98e9c8) on [ticket-5bc2ea8e-webp-preview](/timeline?r=ticket-5bc2ea8e-webp-preview). The preview now renders decoded image frames through Graphics instead of cloning via new Bitmap(image), which should preserve visible pixel data for WebP during refresh and rotation. Build succeeded, but I could not run the net10.0-windows testhost on this Linux machine because Microsoft.WindowsDesktop.App 10.0.0 is unavailable, so leaving this in Review.</verbatim-5b347813848ffb4a2084>