Super resolution on smart preview leaves artifacts which don't go away when RAW is available

Question

I worked with smart preview and used super resolution. This left obvious artifacts in form of grid.

They do not go away when I have RAW available, I discarded smart preview, and even when I disable and re-enable super resolution for that file. (Without super resolution this grid is gone.)

Artifacts are even visible in exports.

These artifacts do not appear on very similar photo with same edits, but which was never edited as a smart preview.

AxelMatt · Answer

Unfortunately you haven't given us any information about your system. Therefore, all proposed solutions are a look into the crystal ball

Is your system up-to-date? Do you have installed all recent updates and patches for the operating system and the device drivers, especially the graphic driver. Please make also sure that you have installed the Studio version and not the Game Ready version of your NVidia driver.

Please provide a copy of your 'System Info'. This can be get from the Lightroom menu item Help > System Info. There's a copy button in the System Info dialog. Press this button and paste the info into a text file and attach this file at your next forum post.

Have you try a reset of the Lightroom’s preferences: How to reset Lightroom Classic preferences (adobe.com)

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