Add to playlist doesn’t work on iOS 14 – SoundHound - Music Discovery Review

SoundHound used to reliably add a match to my SoundHound History playlist for the past few years. I recently updated to iOS 14 and this stopped working. I see only “Not successful” error message. Tried removing the app and reinstalled but no improvement. Also the Contact Us form for app support only leads to “The Requested Resource does not exist” when I try to send something to them.
Review by text message limitation on SoundHound - Music Discovery.