this seems to be happening more frequently with the 98 sedans
the multiplex network is losing communication.

Your window and lock switches don't carry full 12 volts, they supply low voltage signals to the multiplex units (one on each side of the dash) which then send voltage to relays that operate the locks and windows.

I would check the wiring between the door and pillar for breakage, esp if there's ever been body damage to the car.

Check for water intrusion into the front pillars and sides of the dash ( a leaky windshield can let water get into the multiplex units if in just the right place)

(a friend's car was t-boned and both left doors came off to be replaced, found wiring damaged by body shop, it took 2 years to break though)