My solution successfully passes the test and submit. But when I try "submit final", I get:

Solutions have been withheld
Since you have not yet solved this kata we have hidden the solutions from you. If you choose to view the solutions you will forfeit your eligibility to earn honor/rank progress for this kata.

And my solution reset.

For C# version.
Test is OK, but where I submit solution, I get message:

Compilation succeeded - 1 warning(s)

{"stdout":"","stderr":"/tmp/csharp116425-20-jz9oyd/fixture.cs(81,13): warning CS0219: The variable `textCount' is assigned but its value is never used\n","wallTime":0}
Unknown error

Error occurs even with solution from Best Practice. Please, repair the "SUBMIT".

Thank you! Its OK now.

I still get a warning:

Compilation succeeded - 1 warning(s)
{"stdout":"","stderr":"/tmp/csharp116423-21-1l9mmmy/fixture.cs(8,8): warning CS0414: The private field `SumSquaredDivisorsTests.randomGenerator' is assigned but its value is never used\n","wallTime":0}