Keck79

I have a 2014 Fusion Energi with 182k+ miles on it. For the last year, my CEL has intermittently displayed. I have had all the recommended services (coolant, transmission, fuel injection, etc.). The O2 sensors have been replaced. Now my dealer says it's because particles from the catalytic converter are throwing particles onto the O2 sensors. I don't know the code. Anyone else have a similar problem?