Hi, Alan Beck
Since both disappeared after the renewal, I’d check whether Jigsaw is recognizing your account and syncing your collections before assuming the puzzles are gone.
Here are some suggestions you can try:
Make sure your PC is connected to the internet. In Jigsaw, check the profile picture or Sign in option at the top right and confirm you’re using the same Microsoft account you used when you downloaded the collections. You don’t need an Xbox console to sign in.
Open Microsoft Store > Library and check for a Jigsaw update. Then use Start > Power > Restart and check the collections again.
If they’re still blacked out, go to Settings > Apps > Apps & features > Microsoft Jigsaw > Advanced options > Repair. Please don’t select Reset or uninstall the game yet, since you have puzzles in progress.