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When you're knee-deep in a script that refuses to work, using roblox getcallstack can be a literal lifesaver for figuring out where things went sideways. We've all been there: you're staring at an error message in the output window that says something is "nil," but the line it's pointing to looks perfectly fine. The problem isn't usually the line that broke; it's the weird, winding path your code took to get there. That's where the callstack comes in. It's basically a breadcrumb trail that shows every single function call leading up to the current moment. ...