Interactive Dashboards - New Gadgets cannot be selected until after reboot.

We are running version 7.3.0.1 on premises, Windows Server 2012 R2.

We I create new reports that are not available to select as list gadgets for Interactive Dashboards until after the server CRM is installed in is rebooted. Metadata refresh and IIS reset are applied, but the gadgets only become visible to select after a reboot.

Is this a set-up issue?