However, on 1 or 2 November 1937, the Germans replaced the reflector in their Enigma machines, which meant that the entire catalog had to be recalculated from scratch.
Okolo 1. alebo 2. novembra 1937 Nemci vymenili reflektor Enigmy, čo znamenalo, že celý katalóg charakteristík musel byť vypočítaný od začiatku.