This modpack does not have step assist by aroma something or any other modmaker and I have auto jump off and all conflicting keys taken care of. I sprinted 400 blocks 5 times. I counted out the blocks. In a straight 3 wide path no interference or ups and downs and no jumping. There is no reason it shouldn't work how can I make it work or push it through since I sprinted well over 200 blocks :/

try doing it with no Armour