Last time Mordhau got updated was 4/11/2020 so I am not sure if any fix is needed since the autoblock is known to not be "perfect" at times.
As other customer replied to your thread:

Quote Originally Posted by Sunrise View Post
the autoblock doesnt work well for drags/accels/stabs. it either blocks too early, too late, or not at all. as for the horde thing, ive never had an issue with it, but i havent played it in a while either so idk