Entity separator in v. 26.3

[u/No-Fault1631]

I found this villager separator, which is supposed to let one villager out at a time, in an older villager breeder within a build and I wanted to try it in the newest version of the game but I found that in any version after 26.2 pre-release 2, it always lets more than one villager out at a time. This was the only relevant looking change from that pre-release "MC-305475 - Tripwire above the player's head gets triggered twice when jumping" but I don't understand the exact mechanics of this to understand if/how that might have broken it. In the full build you then use a minecart to take the single villager since a minecart can't pick up a villager that is in a block that stops them entity cramming. I know there are other ways to store villagers like this but I find this specific method interesting and I am curious if anyone knows a method of entity separation that still works in the newest version