Developer Tools - States Tab locking up browsers/machine

Configuration
1

Only tested on Edge and Chrome, but whenever I select the states tab it locks up my machine. All browsers become unresponsive for a few minutes and then it will free up. That’s the only place it happens. It doesn’t happen if I use the companion app to check a state though.

It happens when you click the set state section. I would get a screenshot but it locks everything up!

Also - HA server CPU/Memory etc. do not change, so it’s not the server that’s struggling.

Anyone else seeing this?

HAOS 15
HA 2025.3.3

2

States tab fetch data of all entities via websocket, you probably have a weak PC. You can partially speed it up if you uncheck the third column Attributes.

3

It’s not a weak pc - it is an i9 with 64gb of RAM. This a new thing since 2025.3. My phone can handle it, something is wrong somewhere.