Greg, they should start showing up at closer zoom levels, the VORs, Vortacs, etc do not have the rose around them, so look for the center icon. Looks like they show up at Zoom 20 and below.
If you are still not seeing them. You might try touching NRST, then using the Navaid filter, once you select one it should be circled on screen. Then try zooming in and out to see it is shows.
Please give our support team a call at 888-200-5129, so they can troubleshoot this. Have you tablet or gps model available as well, please. There is not a Navaid on/off setting in this release, but we are looking a Vector Mode settings for a future release.