Which version of hub firmware and which browser. I've had problems with that color bulb interface with a previous firmware version and certain web browsers don't work well with Hubitat, Firefox and Chrome seem to work well.
Its happening across the board.
Chrome browser and the latest firmware (just updated 2 days ago).
But it is also happening on my phone in the Hubitat dashboard from the app.
I am also experiencing this bug. using Brave browser. Also tried in Firefox with the same result. Only way to close is to refresh the page and relaunch the dashboard. All softwares are the latest version.
Im having the same problem. I have two identical zigbee bulbs. 1 dialogue works fine and closes even if no change is made, the other one wont close unless i change the color temp. If i adjsut on/off or dimmer options the dialogue "x" does nothing and wont close, but if i edit the color temp then it will work. Im on firefox.
Using Hubitat Version 2.1.8.117, I have the same problem on Google Chrome Version 79.0.3945.130 (Official Build) (64-bit), but only when on a bulb. This doesn't occur when I select a group of color bulbs.
When I clicked on the color bulb template, if I immediately click on the "X" on the top right of the window, nothing happens. If I change a setting, then the "X" closes the window as expected.
It's working fine for me and it's been fixed for a while now. Are you still experiencing the same problem or a new one? What firmware version are you on?