I've used Hubitat C-8 since shortly after it came out with no problems until the last couple of weeks. Certain lights don't come on sometimes (at sunset) or sometimes come on and don't go off (10:05 PM). From my cell phone, I noticed in my dashboard, the templates had "button" highlighted instead of "switch" or "dimmer". The switches are GE/Jasco switches or dimmers. I can change the template back to "switch" or "dimmer" and the app seems to work for a day or two, then I'll check my dashboard and no response on the switches. I look at the configuration, and again, it says "button" instead of "dimmer" or "switch". What is causing my template choice to chant to "button" from my settings?
Is there any chance you have two tiles overlapping on the dashboard? You can cycle through the tiles using the left / right arrows in the tile editor dialog, either side of the tile is, which can help determine the location of each tile on the grid.
