Title. Extended inscribers can fit up to 4 acceleration cards, but stop functioning altogether if there's more than 2 present. Base inscriber still works just fine with 4.

Addendum: Did some more testing and I've encountered the same issue with the base inscriber as well after moving it, but only after inserting 4 cards (which it previously accepted). Not sure if that changes anything.

Edit: Pardon, apparently the AE2 energy system changed a bit since I last used it in 1.18.2. Would delete this if I could, but ah well. Chalk it up to user error.