Datasmith cad importer plugin does not mount

Hi,
I have built UE 4.25.4 from source. I have then enabled the datasmith CAD importer and restarted the engine. While the datasmith content plugin gets mounted, all the other datasmith related plugins don’t. So I do ge tthe datasmith button in the toolbar, but it can only open .udatasmith, .xml and .plmxml.
I tried to delete the plugin binaries and intermediates and rebuild it but did nothing. How can I check why the plug-in does not get mounted?
Thank you

Edit: Giving a better look at the output log, I get this message: [2020.11.25-09.27.50:013][ 0]CADInterfaces: Display: Missing CoreTech module. Plug-in will not be functional.

Does anyone know where I can find that module?
Cheers.