Not all Tracks show on map on Oregon 450

Hi, I have a little under 200 tracks I have captured on my Oregon 450.  I generally upload them into Basecamp to study the tracks, and have an issue where very few of my tracks actually display on the Oregon.  I recognize I can go in to each track on the device, and say select 'Show on Map' however I do not want to do this for all of them, there are simply too many and I would like to be able to see all of the trails I have been on when I am out capturing new tracks.

I've read here: https://support.garmin.com/en-CA/?faq=1Ut7eV6nlp5FV6OtbHmhF6 about data limits, however, I am under the 200 GPX limit.  Also, 200 tracks are not showing up on the map. In fact, if I think about it, unless I select 'Show on Map' I think only the current track might show up.

Anyways, how can I show all my tracks?  And if not able to, how do I determine if another Garmin device will let me do this? Fore example I would love to buy the new Overlander or Montana, but not if they have this same limitation.

Thanks!