I was trying to run the command, but it didn't work. It gave me an error. I have only seen this error when trying to use the @e command. Maybe it is my command, but I know that all the arguments work on there own but not together. I don't believe any of the contradict eachother.

What I expected to happen was...:
Run the command... /testfor @a[score_Steps_min=200,score_Turn_min=1,team=Red] (i have square brackets, but it thinks it is a link)

What actually happened was...:
I got the error message... [18:34:59] The entity UUID provided is in an invalid format
Steps to Reproduce:
1. Put in command block
2. Run the command
3. Use comparator