Unique blueprint ID

I have some instanced blueprints with different variable values and I need to save these variable values

How can I identify the blueprints to load the correct value to the correct blueprint instance?

There’s a message on the blueprints saying that I shouldn’t use the display name to identify

ps: the save and load on my game right now is using “get all actors of class” without any identification, just assuming it will get the actors on the same order on save and load, but if I release a update to the game later and add and remove some of these blueprints I will have some broken savegames right?

Have you tried get object name?