There can be radioactive products as a result of transmutation for sure.
Have you ever found radioactive isotopes after the LENR reaction has completed? That radiation is identified by a associated energy level and a half life.
It is possible that in a weak reaction situation that coherence has broken down and the superconductive state no longer exists. Rossi had this issue in early reactors producing radiation when they started up or were shutting down. Rossi solved this issue by adding a secondary heater that produced additional pumping during those times the reaction was in a state of transition.
But it is difficult to distinguish between breaking radiation produced by high energy electrons and radioactive decay. Breaking radiation only lasts for a very short time whereas radioactive decay shows gradual decay pursuant to a half life associated with an identifiable associated unstable isotope.