Malfunctioning out-of-warranty boards. Not so much a problem for Lionel.
You just need to buy new engines with working boards.
ON A LIGHTER NOTE: it's like when a bank contacts you to tell you your identity was stolen, some hacker used your identity to steal money from the bank. Then the bank tells you, you need to fill out forms to establish your identity.
Well I know who I am. My identity hasn't changed. I am still me.
further, no one stole money from me. any stolen money is totally the bank's problem.