Hi All,
Sorry for the problem. We have added GPU support for thumbnails in the latest beta builds, and we believe thumbnails generation should be quicker and more efficient now.
Please check out the latest beta build version from the creative cloud and let us know how it goes there.
You can download the latest Beta builds from Creative Cloud --> Beta apps
https://helpx.adobe.com/x-productkb/global/creative-cloud-public-beta.html
If you still face this issue, please share your project files(&med
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