Resolution: Works As Intended
Affects Version/s: Minecraft 1.12.2
Fix Version/s: None
Java v8 151
Running on latest server pure vanilla downloaded from the official Minecraft website
After building a huge house I wanted the travel system to be by ladders since there are multiple levels of the house. I was playing on Creative mode on the latest version and I noticed when I was placing the ladders while going up there were some ladders that were beside me without me even placing them. I noticed when going up the ladder, even if there was a ladder there I still heard the place block sound so I looked to the right and I saw ladders there.
I am not sure if this has been adressed or if this is already fixed for the new version but I thought I'd let you know just to be sure.
I have a video linked that was recorded with nVidia Shadowplay so that you can see for yourself.
Note: This worked only when I placed the ladder next to the other wall. It didn't work with vines aswell so that's something that should clear up that the issue is related to the mechanics of the ladders.