Missing pluggins and sound banks

Hi all, I have just upgraded to Cpro 8 from C6. and I no longer have EDM tools from the media bay. The list is present down the left side but the “filter and results” page remains empty. When I re-scan, nothing comes up either. However, this seems to be intermittent now. EDM tools have now appeared on a new empty project.
Embracer and Monologue are also missing.
With the exception of BFD2, all my 3rd party plugins are also no longer on the instrument list.

HalionOne sound library is also missing. It was missing before on C6 so that one in particular has nothing to do with the upgrade but I would like to know how to locate them some time.
Please help me in retrieving these items.
Many, many thanks in advance.