Redstone Not Functioning As Previously

A 3x3 redstone piston door on a multiplayer server is no longer functioning as it should after the 1.14.1 update. It was functioning as intended after the release of 1.14. I'm certain it hasn't been interfered with and I've triple checked that the circuitry is all as it should be. The door is the very one featured in this video: https://www.youtube.com/watch?v=nwQ2RsvUUao

The door closes properly, however it doesn't reopen correctly. I've attached some pictures showing what I mean. It seems that the piston in the lower left corner is not retrieving the blocks that it should be, though I could be wrong. I can only assume this is unintended because there is no mention of any changes to redstone behavior.