which makes me believe the dataset is out of order:

There are no errors in the kata but a flaw somewhere in the logic of your code.

Can this exercise be solved in PowerShell? I'm quite sure my code is correct, my function is returning the expected error at first appearance of a float number yet I'm getting below exception which makes me believe the dataset is out of order:

Expected string length 66 but was 60. Strings differ at index 20.
Expected: {Error(float number):Los Angeles Clippers 104.0 Dallas Mavericks 88}
But was:  {Error(float number):New York Knicks 101.12 Atlanta Hawks 112}
-------------------------------^