Hi there,
I’m getting a duplication of rooms when adding a guide surface for some reason. Has anyone come across this before?
Hi @Nicholaskerr, out of curiosity, have you tried flattening this input:
I don’t really use guide surface components so I’m not speaking from that experience, that just looks like it either may help or… just a list with 4 objects 
best
-trevor
Your instincts were good! I flattened the output of the merge component upstream of this and it sorted the issue
Awesome @Nicholaskerr !! I am happy we found a solution 