Constant stalling even after new parts

So I have the SLT model. I recently replaced all plugs, wires, cap rotor, starter, alternator, battery, map sensor, throttle position sensor, idle air control valve, belt tension-er, oil pressure switch and ignition coil. Today, 30OCT2018, in the ten miles, I drove to work my truck shut off on me six times. Recently I got a hole in my muffler and the catalytic converter internals "grenaded" as my service center manager at my work put it. I let it idle and there is no change in any of my gauges when my truck just shuts off. I currently have a 40+ plus year (with 25 years ASE certified) technician confused. And we rarely have the same days off so we can actually dive into the truck for a day or two and actually figure it out. I am almost tempted to go to a dealership and spend almost $200/hour and have them diagnose it.
What could possibly be going on with my truck?