There aren't any random tests in C#. They're fixed tests in randomized order.

It is a random test. I got it by Console.WriteLine()

First of all - there is no test like this (I assume this is for C#). This looks like output for multiple tests in a row. (use Console.WriteLine to see each input clearly)

There's 3000+ C# completions and the tests seem fine, not a kata issue.

What should I do if a random test is incorrect?

Test case: hi(hi)(hi(hi))(())(()hi(hi)

Expected: Valid (True)
Actual: False

Solving steps:
0. hi(hi)(hi(hi))(())(()hi(hi)

1. ()(())(())(()() -- parentheses without text
2. ( -- removed all paired parentheses

Test is incorrect