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Recently, we have moved to a new host, and are still in the process of being properly load balanced. The result of this is that users occasionally get a 404 error. The second result is that some attachments get uploaded but the thumbnail creation fails.

I know that I can call for a full rebuild of thumbnails, but is there any way to just have the system rebuild thumbnails where no thumbnail file exists (rather than all of them).

-Rob A>