My Eaton all-in-one CAFCI/GFCI circuit breakers CHFN115A1CS are acting up and are tripping without reporting a flash code (either nothing or solid on after reset). Older models CHFN115AF (CAFCI-only) and CHFN115DF seem to be fine (along with those older ones in 20 ampere varieties, but I don't have any of the new A1 in 20A).
Unsure if it's the electronics inside or just weird things being induced onto the power line that they don't like. Some of the tripped breakers had no load at all.