Ai interaction has changed or bugged

Str8crazy

When ever the fight starts and the two champions run toward each other a well time blocked would parry the other champion. After this update there is a micro second delay when the champ runs at u b4 u can hit that well timed parry. It looks like a glitch and also makes the parry time a lil sketchy because typically in the past if you wait that micro second you are getting punched in the face. Anyone else experiencing this.