Sometimes the fish are so keyed in on what they are feeding on that they will not hit anything else. I have had that same situation several times on different lakes. The worst was at Santee-Cooper a few years back. We had 3-5# bass jumping everywhere and it lasted for almost an hour. We did not hook a single fish the whole time. Talk about going crazy. All you can do is try to "match the hatch" as close as possible.