Currently (Requiem+Pandemonium 1.5.0 and Minecraft 1.16.4), when you possess an Enderman and teleport, the teleportation plays a sound only at the starting position, which is unintended and opposite behavior to MC-94481. This causes teleportation to be silent past a distance of 16 blocks. When fixing this, because of the vanilla issue linked above, either of the following would be appropriate:

• Possessed Enderman play sound only at teleport destination (Preferred until MC-94481 is fixed).
• Possessed Enderman play sound at both starting position and teleport destination (Fully accurate thereafter).