After updating my iPad the voice memos are syncing between the Apple Watch and the iPad, but the iPhone’s voice memos will not sync with either the iPad or the Apple Watch.
Deleting the Voice Memos app from the iPhone and reinstalling it solved the problem. Voice memos now syncing on Watch, iPhone, iPad and iMac running MacOS Catalina!
having the same problem.... crap... so you just deleted it on the one device.... i might try it... making sure i've saved all the memos that are ONLY on my phone... uggg..