Get Room data from item 0 of Level List 3 returned null

I was trying to follow one of the videos found online and couldn’t get it to work since I have multiple Linked Models and the video has one. I wonder where things go wrong here. Much appreciated the comments and questions for my journey to learn this software! Thank you!

Hi @VECDerek

Welcome to Dynamo Forum!

Have a look at the preview-Springs.Collector.LinkedInstanceElements. It says Linked Document is Unloaded. Just reload the linked file and you should be good.