(I'm definitely not an expert. Grains of salt encouraged.) There were no checksums, so incorrect ciphertext is possible. But Enigma is a stream cipher, so if

(I'm definitely not an expert. Grains of salt encouraged.) There were no checksums, so incorrect ciphertext is possible. But Enigma is a stream cipher, so if there was a missing character or someone bumped the wheel halfway through, it should still be possible to find two separate solutions that produce the plaintext before and after the error, respectively.