If the Elevator is not within the view of the camera then it won't render its movement when called. The block entity itself will still make its way down and damage players or obstruct their movement; however, it is treated like a ghost block.

Just wanted to include how much I absolutely love these elevators. Honestly, it's to the point where I wish you had a standalone for it so I could use them all the time. 10/10 mod as a whole.

This happens in a single-player game, I have not yet attempted version 1.0.0 on a server.

I can confirm that this issue is not present when using the mod on a server. (Though I can say that there is an odd issue where if the client has the mod installed and a server does not the 'Jacket Layer' on player skins doesn't render)

Hey, thanks for reporting!
Is this on a server or in singleplayer?

I could not replicate this issue myself, however I did think of a possible solution in d70704d.
Is it okay if I leave this issue open and ping you once the next version comes out to verify whether it worked?

I seem to have made a mistake before creating this issue. Normally when I experience an issue I make a fresh instance of Minecraft and re-test to verify that it still occurs. Even though I did that, I must have launched the wrong instance.

This issue is caused by the mod EntityCulling V1.5.2. I'll change the name of the issue; however, this problem can be resolved by adding "minecells:elevator" to the whitelist in its config. I apologize for making you do something unnecessary.