If I had to guess, it sounds like the app lost connectivity to the lights, and they are just operating under the last known configuration dropped to them from the cloud controller. I did run into a couple issues when setting mine up. I was expecting it based on reviews and the fact the controller seems to be completely cloud based with a WiFi connection. I made some changes on the network side and I have had no issues since. Assigned a LAN static IP to each light, and my iPhone. I also turned off the "private WiFI address" feature on my iphone. I did both at the same time, so can't confirm if only one was necessary. I understand not everyone has the knowledge to make these changes, shoot me a dm and I can walk you through it. You just need to know the MAC address for each light, which is easy to find in the ReefBeat app under the "device manager" section.