Buttons not reflecting current state

I had a problem start today that I’m not sure what is happening. When access HA from my PC, my buttons stopped displaying the current state of devices. I have a horizontal stack with a button for a light. I also have an entity card with just that light. When I click the button on the horizontal stack, the light comes on and the icon in the entity card changes to show the light being on. But the icon in the horizontal stack doesn’t change. I have tried deleting the card and recreating, but same problem. When I access HA from my phone, the icon on the horizontal stack works as expected. This horizontal stack was working yesterday, but not today.

Clear your browser cache.

That fixed it. Thanks.

I love the simple ones!