Create Mechanical arms not working on sublevels

### Description

Mechanical arms stop working completely when a sublevel is assembled. Arms are correctly targeted and powered, as shown. arms still do not work when replaced. 
<img width="1281" height="807" alt="Image" src="https://github.com/user-attachments/assets/e26a43bd-0523-4f46-8112-4c514a9cbc65" />

### Game Log

https://mclo.gs/TRw4kul