Commercial Fixed Wing
Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP)
Human-Machine Interface; Training / Qualification; Distraction
Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Became Reoriented; Flight Crew Returned To Clearance
Human Factors; Environment - Non Weather Related
New FO updating arrival waypoints mistakenly deleted route in legs 1 at XA:40Z.  CAand FO immediately reinstated route in legs 2.  CA sent position reports to ATC at XA:50Z and XB:17 Z.  CA counseled FO.FO familiar with Manufacturer X aircraft type and not Manufacturer Y aircraft type. Unable to fly after training due to virus.[I suggest] more training.
Captain reported the First Officer mistakenly deleted the route in legs 1.