I am from an Eastern bloc nation. In my childhood I was taught that the Soyuz 1 mission failed because a decimal point was ignored during the pre-flight check, which was the cause of the parachute failure.
Sources are abundant in my native language referencing this teaching. Yet I am unable to find any information relating to a decimal point being the cause of failure in the English language.
Did the Soyuz 1 mission fail because of an ignored decimal point?