How do I solve the HoneybeeEnergy material name duplication severe when doing annual load calculations?

Hi everyone:
I used a custom multi-layer envelope structure when calculating the annual load, but the error file indicates that the “material” here is repeatedly named, how can I solve it?

annual_load.gh (414.5 KB)

I’ve fixed the name problem and just need to use a unique name to resolve the error.

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That’s what I wanted to recomend you :wink: