2019 NISSAN FRONTIER Engine Problems

We have three 2019 Nissan Frontier pickups in our fleet that have all recently had the same problem. A engine valve misfire on cylinder 3 on all three trucks. This has caused the trucks to shake, idle rough, and have loss of power while driving. Two independent mechanics have inspected the trucks and have replaced multiple parts to try and fix the problem, however, it has been recommended that all three trucks have the engine replaced. The check engine light did activate on the dash when the problem first began in each truck.

Issue: engine and electric system completely shut off randomly while vehicle is driving. Cannot reliably reproduce, but all electric is lost and engine shuts off or at best resets in low gear until things come back alive. This has happened about 4 times to me across two batteries. What component or system failed or malfunctioned, and is it available for inspection upon request? The system is blaming the "battery current sensor" and I believe it is the system that controls the "dynamic" alternator system. How was your safety or the safety of others put at risk? The vehicle loses all power and lighting. This causes me to pull over without power steering and power brakes. This could happen at any time Has the problem been reproduced or confirmed by a dealer or independent service center? The dealer has read the code but refuses to work on it without a brand...