2018 2500 6.4 Hemi

Hey folks, just got my first Ram truck, a gorgeous 2018 2500 Tradesman, with 116k miles.

I am having an issue. Started misfiring. Went ahead & replaced ignition coils & spark plugs, & that unfortunately did not solve my issue.

It is intermittent, usually happens while getting on the highway. What’s my next move?