No Patches listed, but states number of missing/installed/applicable

No Patches listed, but states number of missing/installed/applicable

Hi there
I'm new to ManageEngine and currently trialing the application, before committing. I've added PC's to the scope, enabled patch scanning and set the Automate Patch Deployment.
However, when I go to 'All Patches', it indicates the number of missing patches, installed patches and applicable patched, but the are below, where all the patches are listed is completely blank (see attached).
I have a feeling I've missed something out.
Any ideas?
Thanks

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