So last night I did lots of tests, as to my assumption, it was all the versions of DS with this glitch. It was not until I deleted everything out of my steam folder, and did a full clean install that I realized this bug is is fact patched on steam. When going to my laptop to play the gog version (which is just the game, no CC installed) I was able to replicate the glitch. I also was able to replicate it with the original 192 build of the original DS installer. So if you ever run into this glitch, get the steam version, it does not have it.
It duplicates the elevator (This is the gog version, as well as the OG 192 build with C3 installed on a different drive, it seems this glitch goes back 20 years??)
With or without mods it does this, anyone else?
I have discovered that it is just the docked worlds, undocked it does not have the elevator duplication glitch
Also note I am pressing the green down button the the elevator itself, NOT the call button to trigger this glitch, I don't think it makes a difference...I also have just started new worlds when testing to get this glitch.