Hey @Laurellongmusic, thanks for posting!
I moved your idea from the Ideas Board, as I assume it's a bug. What happened exactly to your Discover Weekly playlist? You can't seem to find it, or? Also a screenshot would be helpful, thanks!
If you can't find it, try to type Discover Weekly in the Search Bar, it should pop-up as the first suggestion.
If not, you can try to log out and log back in the app. If still no luck, you can reply back here, and I'll see how I can assist you further.
Still no luck after this? Reply back here, and I'll see how I can assist you further.
Note: It's worth to follow your Discover Weekly, just in case something happen again in future : )