Is it true taxes are to be filed after feb 15 with dependents? If so what happens if you filed already?

After you file

If you already filed, you don't need to do anything now. IRS will delay processing returns with some child related credits until 15 February.

After you file

Oh ok, but this doesn’t affect in any way good or bad the return or credit you received?

After you file

Correct - Only timing is affected.