When uploading ASTC textures on gen9, we perform a workaround that involves modifying the compressed blocks.
If these blocks are subsequently read via a texture download or CopyImage operation, the result would not match what the user uploaded.
Another reason that CopyImage can fail is that the needed workaround is not applied for CopyImage calls that have ASTC textures as the target. When the ASTC texture is later read, we may encounter a rendering issue.
-- GitLab Migration Automatic Message --
This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.
You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/mesa/mesa/issues/1712.