There has been a glitch around for a while that lets you teleport through walls of up to multiple studs thick. Here is a Youtube video showing it:
I haven’t found any reports of this even though this video is already a year old, but players are using this glitch in my experience to cheat and claim rewards they otherwise could not.
Expected behavior
Avatars shouldn’t be able to teleport using emotes, such as the V Pose emote.
some emote glitches have existed as far back as 2015 with no patch 
Found someone to look at this, we’ll update you as soon as possible. So sorry for the late response here!
this is still a major issue. I have people glitching through walls on my zombie game; game breaking I would say
Just so we are clear, a lot of players enjoy this glitch and fixing it is controversial.
if /e laugh gets fixed because of this ill crash out
you can make or get some sort of anti cheat that detects wall clipping; emote clipping is a enjoyable glitch (similar to wall hopping) and roblox fixing this will 100% make the community go into chaos