Curve asset null while trying to create Curve for Timeline

I’ve been trying to replicate some of the blueprint functions in my project, and I’m working on the crouch function now, so I was following a tutorial on how to create a Timeline and add a Curve to it. The problem now is the Curve file can’t even be found to begin with.

It just says null, even though I created the Curve inside the Unreal Editor and put it in that path, what can I do now? I’m not so sure if creating the file from inside the Editor is the correct approach or even if it should be called from the constructor, but I don’t know how else I’d do this. I also had to comment out the "check(Curve.Succeeded()); " line, because otherwise Unreal just crashes on startup.