Frontend not reflecting changes (sometimes, in some browsers)

Hey there,

my frontend does not reflect (some of) the changes I do to the configuration. I am using the old frontend config via groups.

If I add entities, I realized I have to reload the page via F5. They then show up reliably. But if I hide entities, they don’t vanish from the frontend. This happens both when I remove them from groups and also when I set their “hidden” customization.

The changes actually get shown in some browsers but not in my main Firefox 67.0, 64-bit on Windows 10. The latest Firefox on Android reflects the changes (most of the time).

I cleared the cache and offline data for my instance.

Is there any other thing I could try to have my view update correctly?

Thanks!
Andreas

After some testing, I opened a bug report with a minimal example here: https://github.com/home-assistant/home-assistant-polymer/issues/3279