Daily Challenge Jigsaw Jam not loading for past 3 days

I have the same for weeks now, and not only no new jigsaw puzzles but also the daily challenges are corrupted: the jigsaw-jam does not load but only spins. Could Microsoft do some repairs?

The same thing happened to me on 31st December - no more daily challenges. They start to load (seemlingly) then it just switches off Jigsaw altogether!

Jigsaw collections work as usual, but not Daily Challenges.

i tried uninstalling and reinstalling the app. this had no effect. i ran the troubleshooter. this had no effect.

here's what happens:

1. i launch the app.

2. it loads, and gives me the page that allows me to select classic, jigsaw jam, or daily challenge.

3. no matter which option i pick, the screen shows the app loading, and before it completes loading i get a black screen, then a white screen with a rotating black loading cirle, then the app crashes.

Jigsaw works get on Desktop, but never loads daily challenges of Surface Pro
.

Reporting this same problem on 11/18/14. My gold has reset to 1500, and my progress on this month's challenges and the Jigsaw Jams have been wiped and won't save anything I've done today. It's kept the couple of extra sets I downloaded, but it's erased all
of my records of completing some of the puzzles. Also, when I click to do the Daily Challenges, it sits on the load screen for 20+ seconds and the loading animation doesn't move.