Transmission won’t shift after I stop

When I start the truck and take off driving everything shifts smooth and perfect but say I come to a stop at the first stop sign when I go to take off the truck won’t go… If I put it in park and turn the ignition off and then start it back up then put it back into drive it will go and shift perfect and smooth and when I come to a stop again the same thing all over?????? It’s a 98 F-150 single cab short wheel base 4.6L v8 2 wheel drive