I keep getting this error when trying to run the code, before even adding in any code
Line 23:Invalid cast. Cannot convert from "Node" to "Tween
Is this related to update?
Okay looks to be update related, rolled back to previous version and this seems to have resolved the issue for now
If by update you mean Godot 4.0, then yes, the courses only support Godot 3.5 at the moment. Godot 4 remakes will start coming out in several months.