Four engine annomalies are almost always fuel managing problems and temporary in nature.
If by "fuel managing problems" you mean the lack of the stuff - they are rarely temporary!
Short of running out of fuel (
Air Canada Flight 143,
Air Transat Flight 236) most of the four engine failures I am aware of have been environmental (
Meekatharra BAe 146 rollback,
BA Flight 9 volcanic ash incident) - hence the post about lightning as an environmental factor, rather than an electrical interference one.