I found a jungle stronghold around 1000 blocks away from spawn in creative mode (not sure if the distance had to do with the bug) and when I went inside there was no dispensers and no chests. Where they should have been had been replaced with regular mossy cobblestone blocks.

I found an additional two more jungle temples and both were in the same situation, no dispensers or chests in them. The seed where the issue occurred is -8061525112730960317 and the jungle temples are to the far north of where the player spawns.