Since you marked that as resolved, I assume it helped! To add, In regards to getting GAS setup correctly, I have a handful of resources that might help that process.
Disclaimer: One or more of these links are unaffiliated with Epic Games. Epic Games is not liable for anything that may occur outside of this Unreal Engine domain. Please exercise your best judgment when following links outside of the forums.
Community project: (dated)
Community tutorial: (dated but with project files!)
Official Docs: (You probably already have this but I always add it)