ForLoop Replaced by a Macro Instance 4.20.3

So last time I worked on my project I created a ForLoop that spawned MyActor a specific amount of times. A week goes by - I download my project and open it in Unreal. It instantly shows an error in the blueprint. So basiclly my ForLoop got replaced by Macro Instance(Shown in the picture) and now I cannot find any loops noor any other type of Flow Control nodes in any of my blueprints.