Infinite Loop Asserted during Construction Script

Hello,

I am messing around with this procedural room code found here:

or if you prefer pics:

I tried to simply copy paste this code to run a second time after the first generation finished I cannot run the code without getting and Infinite Loop. It is detected in TILE_BPs, asserted during Construction Script. Can someone help me out? Basically I am trying to make this code work for two floors.

Thanks in advance!

I had the same problem when I was casting to the wrong BP to call for a function.
You said you copied code. May be there is a wrong casting node. Try rechecking all casting nodes.