PDF thumbnails not working?

Using DTP 2.9.12 on 10.11.6 (El Capitan).

I can’t get any thumbnails to show up for newly imported (or indexed) PDF documents. I get plain white thumbnails. I can delete the thumbnails (and then I get the generic PDF icon) and then create the thumbnails, which again results in a plan white thumbnail.

On old files, I have thumbnails, but if do delete/create or update they turn into plain white.

Thumbnails from text files work fine.

Is this a known problem?

This is unfortunately an incompatibility of the new PDF thumbnailing of version 2.9.12 which renders also annotations. The upcoming version 2.9.13 will fix this, in the meantime the only workaround is to downgrade to version 2.9.11.

Thanks for quick reply. Estimated release date of 2.9.13?

Sorry, but we don’t give out timeframes on releases. Development is too dynamic an environment to be too specific about these things.