On engineering controllers — which have no model/options programmed into the chip and are configured at the bench — the main copy of the setup table was being wiped and rebuilt on every powerup, leaving only the backup copy valid. That left those units one glitch away from a "configuration changed." This change preserves the configured model on those units so both copies stay valid, while still bringing up the model-select screen when a model genuinely needs to be chosen (fresh unit or after a flash/memory clear). Production controllers behave exactly as before.