Try to open the LIFX app and check that it has cloud connection. If it does, then send an email to LIFX to fix the issue in their SmartThings integration.
Sounds similar to the recent Lutron status issue. While this is not the option you will want to hear, you may want to remove the lifx integration in menu > settings > linked services and add it back. Note: removing the integration will remove all your lifx devices and any automations that have lifx devices associated with them. So take screenshots of any automations before removing the integration. You will need to recreate those automations after you add the lifx integration back.
I can also confirm the desynchronization problem at my home - which is causing basic lighting automations to function intermittently, or not at all. Would someone at ST please check the cloud integration from my local ST connection (spigot-regional-useast2.api.smartthings.com) to LIFX’s API? Both of my mobile app and Windows ST app are desynchronized with LIFX. Please fix ASAP.
@itchy I was just able to add all of my LIFX lights back to ST. I tried to add them back into AT. They’re available, but the tiles indicate a “?” for all of them. How’s ST and AT working for you.
It took a couple of days for my bulbs and automations to function normally again. I am confident that this was a ST/LIFX integration problem, and at the time, my local ST node connection was experiencing significant latency. When I spoke to a ST support rep, she told me to try resetting my bulbs - but, in my opinion, that should always be the last suggestion, especially since it would also require recreating any lighting automation which involve the bulbs.