say contributions to HSA were in January and FSA on a calendar year contributions were made starting in April with a new employer. the problem is the plan year of the FSA covers the period you had an HSA which represents disqualifying coverage. the FSA can be used to pay for expenses incurred in January when you were on the HSA. since it is your employer denying FSA coverage discuss it with them. can't really say what their reasoning is since the problem would appear to be with the HSA contributions.
