Smartthings / Phillips Hue Sensors

Noticed lately that the automations that I have set up in my bathroom and office no longer work. When I looked into it, HA says that Smartthings no longer reports the sensor for either of the Phillips Hue Motion sensors that I have set up. Is this a known issue or am I maybe missing something here? FYI, part of my troubleshooting was to replace the batteries in both sensors…still no change. Any assistance would be greatly appreciated.