The NetworkProfiler and UI tool assume that ActorNames are in the format <ClassName>_<ActorName>, and is not robust against underscores in either the class name or the actor name.
However, given that using '_' is fairly common in naming (especially in BP) this causes problems.
Either the actor Class should be stored in a separate field or work should be done to ensure a unique delimiter between ClassName and ActorName is used.
Expected: Data for each actor will appear in a unique row, and every visible actor should correspond to an actor placed in the level.
Actual: Data for each actor will appear in a unique row, however there are rows that don't directly correspond to actors in the game.
There's no existing public thread on this issue, so head over toAnswerHub just mention UE-43310 in the post.