Okay, confirmed that this is a Dominic Design Team issue. Was able to repro this in the stock Citation CJ4. I uninstalled the scenery from the Marketplace, RW05R was then available.
Interestingly, I was not able to reproduce this in the FSW Lear 35A with the TDS GTNXi; it had ILS and RNAV RW5R. Guessing this unit has its own database, even though it’s not a separate item in the Navigraph Hub?
Anyways, problem identified. Thanks, all!