Is there a data cache that carries over between iterations of the program?

I’m asking because I have a static mesh component of an actor which is not visible on spawn, but certain iterations of the actor will have theirs set to visible just after they spawn. The problem I am having is that the program seems to ‘remember’ these settings when it’s run next, so instead of only showing the ones it’s supposed to, it shows those plus all of the ones it showed during the last run of the program.

I was particularly confused when I added the appropriate nodes to make them all invisible at the very beginning and the problem continued. Finally, in frustration I disabled the section that would make any of them visible at all, and put in two sections that should set visible to false for good measure. No luck; the same ones are still visible, even though there is now absolutely nothing in the blueprint to suggest that they should be. So all I can think is, is there some data cache I need to be purging or something?