I made a big oopsie a couple of weeks ago when, instead of uploading the final version of the Society6 nIFTTTy scheduler, the one that worked with collections, I uploaded an interim one that didn't.
It's all sorted now:
That's it (above) pulling from my Tartans Home Decor
collection in the scheduler. You can see how I set things up (before choosing the nIFTTTy scheduler option in Step 2 of the Society6 Nifty CPanel) in
the image below.
Click / tap the image to try the CPanel for yourself...
Sorry for any inconvenience and / or confusion caused!