i have an graph which stores the result of exercises. The graph looks like that:
EXERCISE_RESULTS -> <ExerciseId> -> <Date> -> ResultEntry

Now i want to retrieve an exerciseId-Node by using the following chain command:
gun.get(TableKeys.EXERCISE_RESULTS).get(exerciseId).once(callback)
When i execute the chain, the callback of the once method is not being called. If i call this a second time however, the callback will be called with the data of the ExerciseId-Node.

Do you know what the cause of this behavior could be?

I use the gun version 0.2020.1232