RE: Unexplained loss of control
You are correct about interference, but 2.4 receivers are still able to have problems from noise from the system in the plane, like an ignition, bad switch, bad plugs, servo going bad, etc. Every single one of those things has been documented. In the pre 2.4 days we just called it getting hit, but now we know that is not the case. External noise from metal to metal, outside interference, etc. generally have no effect. But the stuff on the other side of the RF deck can cause issues. You will not get a lockout since the RX is still seeing a valid signal. You get things like un-commanded surface movement, erratic behavior (i.e. "glitching") and so on.