I still seem to have the same problem. When I say "talk to Stringify" Google says stringify is no longer available.
All my flows have an IFTTT
I have tried changing a configuration in a flow to re-enable it.
I have unlinked accounts and relinked.
It just dawned on me that I should uninstall Strinify phone app and reinstall.
IDK, What is the current status? The link says all is good (except Flickr) No incidents reported today.