Super Smelter Problem

Made a super smelter. Random furnaces are not getting the fuel. Hopper minecart seems to not be giving fuel to specific hoppers. Already checked all hopper orientation and should be working fine, just for some reason some specific ones are not receiving fuel from minecart hopper.

Vanilla 1.21.4 with minecart experimental turned on. Max minecart speed is 40 that is why there is only one powered rail.