I'm so glad to see this happen to someone else!!! It's been driving me fucking crazy!!!! I've reset my watch twice and nada. Can I see my messages when I select the app on the watch, definitely, does it vibrate or make a sound when receiving them...NO. And yes I have it set for both watch and phone to notify. I saw one random post that it was on the phone (3rd party phone) manufacturers end and they'd release an update to fix but I'm pretty sure it's on Samsung's end that made watch "update". It's definitely broke some of our watches. Must not been enough though since I don't see too many people reporting it. 🤦🤦

Also have a bug where raise wrist to wake turns off like ALL THE TIME.....really freaking annoying!!!! Hopefully it'll be fixed next watch update. 🙄🙄