Elevator Becomes Invisible Inside Interior (MLO) – Looking for Help

Hello,
I hope I’m in the right place. I’m currently working on an elevator system where the elevators actually move. Everything works 100% fine except for one issue related to interiors.

I build my own interiors and I’m fairly experienced with rooms, portals, and collisions. Unfortunately, the elevator bugs out inside the interior: depending on the camera angle, it becomes invisible.

What I’ve tried:

  • First approach: Spawning the elevator as a prop → the elevator was almost never visible.
  • Second approach: Completely rewrote the script and rebuilt the MLO. The script now detects the elevator prop from the MLO and moves it instead of spawning a new one → same issue.

Current behavior:

  • On the floor where the elevator starts, everything works perfectly.
  • As soon as the elevator moves to another floor, the invisibility issue appears again.

Does anyone have experience with this or an idea what could be causing it?
I’d be very grateful for any help.

Best regards,
Piet

depends how you set up the mlo with rooms and floors, sounds like when you go up a floor, you are going to another room but not throu a portal

The entire elevator shaft (the full elevator channel) is set up as a single room.
All floors are inside this one room, so the elevator does not pass through any portals when moving up or down.

do you have portals going from the room to elevator at top and bottom?

How many portals do you have?

Like 40 portals in total. I have portals going from the shaft to the room that is at the position on the floor

why so many?

I would suggest redo your ytyp with one room and just portals to get into the mlo and for the elevator shaft, get that working, then add the rest

My building is huge, 4 floors and a garage and many exits. MLO is working perfect, only the elevator cabin is the problem (when moving)

Does maybe someone else has an idea? Mby can I do it with prop spawning and then set it to the room and change any portal state?