My Sengled Element Color kept setting itself to Azure, and I couldn't figure out why. There's something up with the buttons that resets it to RGB mode. To replicate, set the mode to CT mode. Then close and reopen the device and "mouseover" some of the buttons without clicking. It will automatically change the mode to RGB and reset it to Azure. It only happens on a freshly loaded page, so to repeat you'll have to go back to Devices and reopen the page.
Strange. I just tried this (Chrome, Windows 10) and wasn't able to replicate it. Tried it without any extensions or anything.
Aha, thanks for checking. Looks like I still had a Tampermonkey script installed from back before HE had color maps. Uninstalling it solved the issue.