Unable to Create Helper in UI

I am running HAOS 2025.5.2 with Frontend 20250516.0, and I cannot create a helper from the config/helpers page. When I click the “Create Helper” button, I see the “Create Helper” popup with fields for “Name” and “Icon” (and no other fields), but when I click “Create” the popup closes but no helper is created.

I would be comfortable creating the helper in config.yaml, but I don’t understand the syntax for the specific helper I want. I’m trying to follow the instructions for creating a Dryer Finished notification with the ThirdReality vibration sensor.

Is this a bug, or have I screwed something up?

Thanks,
Darwin

Sounds like a browser cache issue. Ctrl+F5 should fix it, otherwise try incognito