What would cause a Chapter 13 bankruptcy case to be declined after the trustee meeting and payments have been made?

There are many reasons why a chapter 13 bankruptcy petition by a debtor would be denied after the initial trustee's meeting where payments have been current. Some examples would be that you are not qualified to have a chaper 13 bankruptcy filing approced due to the amount of the debt owed to creditors (too much) or that you failed to comply with the required schedules to be filed.

I suggest that you ask your bankruptcy attorney and the trustee for the specific reasons why your chapter 13 filing was denied. They would be able to give you the answer you want.