By definition of self-synchronising cipher, if part of the ciphertext is lost (e.g. due to transmission errors), then the receiver will lose only some part of the original message (garbled content), and should be able to continue to correctly decrypt the rest of the blocks after processing some amount of input data. Only if a whole blocksize of ciphertext is lost, both CBC and CFB will synchronize, but losing only a single byte or bit will permanently throw off decryption. [Wikipedia]
I dont understand the last sentence. Isnt it the same, if there is a hole block wrong(or lost) or just a bit ? After 2 decryptions its not important if there was a error or not ?!