Hi Kai,
That’s unfortunate, but judging on the information you provide it looks like a communication problem as both devices show the same behaviour. These devices communicate with you Homey over z-wave so I suggest you look into that. The app only commes into play after signals are released over z-wave and passed through to the app, Homey handles all communication.
A starting point can be the Developer Tools where you can look into (some) z-wave information: Homey Developer Tools
I have now deleted the unknown nodes in the developer tools and performed a Z-Wave reset. Subsequently, I re-added the Ring Keypad. It is now displayed as working, and a test also runs through successfully. But doesn´t work…
EDIT : I think, i found the Problem… I connect one of the Keypads to my other Homey Pro (early 2023). And here it works… So it looks like the Homey Pro 2019 is causing the problems…
I have the exact same problem as @Kai102. My Ring Keypad V2 stopped working about a week ago. Whenever I press any key on the Ring Keypad the red wireless signal indicator turns on. But if I change the alarm state via the homey app, the Ring Keypad notifies that. I have removed the Keypad from Home and reinstalled it, and re-added it to Heimdall with no effect. I’m hoping that more information can help. I will also check the Dev Tools.
EDIT: Just re-read Kai’s reply. Will look into that. Running on a pre 2019 model.
oh, okay, and I thought it was a hardware problem with the “old” Homey, but based on @NiclasSwe report it could be more of a software problem. Have there been any updates during that time?
There was an update for the Homey device (not sure when it was published) that I just installed. It didn’t solve the issue…
