No Kline data for testnet websockets streams?

Hey all, been trying to get plugged into the testnet to test my bot.

I followed the documentation and replaced the url ,so my testnet socket URL is :

On normal binance endpoints everything works fine and i can retrieve multiple different Kline streams no problem, but now that i switched to testnet i get no response, just an open connection and no messages back.

using my normal socket URL works fine:

so is it normal for some reason that there is no Kline data on the testnet? They make is sound easy to just swap the URL, and yet the entire thing breaks. haha

thanks for feedback, the kline stream is under maintenance, will be back soon.