Activity Showing Up In Explore But Not Connect

I went on a recent backpacking trip in the Crestones, but it looks like my watch only saved in "history" the day I backpacked in and the day I backpacked out (not any of the other hikes I did while I was there). Looking around, I found the activities are saved in the Garmin Explore app on my phone, but they can't be found on my watch and they're not syncing to Connect. I have no clue what the issue could be, and although I'm grateful I was able to find my GPX files somewhere, I'm worried about this happening in the future and not having the data. Any help?