Custom Column Not Visible in Tabular Form

Hi

I am using MS SQL Server DB.
I created a custom column using CASE Statement. Showed no error.
= CASE([Status] = "O", "Open", "Closed")

But the custom column is not visible in the Tabular form?

But again I created another Custom Column using the above Custom Column just by taking the above custom column and it showed up.

So is this a bug or am I missing something?
Can anyone please help?

Hi @spanda
Post "Diagnostic Info" from Admin > Troubleshooting.
Are you perhaps using a name similar to a column that exists?