SucculentCrab55 I've had this problem when I tried to launch UI too quickly, try to wait a bit and then check UI again

@<1526734383564722176:profile|BoredBat47> I've tried it multiple times. still doesn't work

yes. all 8 of them are running

The server usually takes about 2-3 minutes to start up (ES takes time to warm up), does the issue still affect you?

Try to run docker ps and check if all of your clearml containers up and running (should be 8 total)

I encountered a similar event when I installed ClearML on Ubuntu set up on WSL2.
In my case, the cause was probably that I had limit on the memory allocated to WSL2 (up to 2 GB) by editing the .wslconfig file.
It seems that elasticsearch cannot start properly if the memory is low.
By removing the restriction, the WebUI was displayed.
A similar environment might solve the problem.