UE4 crashes when removing element from map

Hi,

I wrote a Widget, which gives you the abbility to save load delete and overwrite a savegame. It writes files to the hd and read them, when opening the widget. Internally I open a savegame, read its variable “name” and write this name an the filename to a MAP.

So there is a Map with the name (string) of the savegame, and the filename (string).

I could add new Items, overwrite or delete them, whatever I want and suddenly, when I want to delete or overwrite, the engine crashes. I found out, that its the “remove” functionality from the Map.

I think it is a bug, because the remove fuctionality has a boolean output, so it shouldnt crash at all, but give me a report. I really tryed a lot of things to figure out, in whitch situation it crashes, but it seems to be randomly. The only thing is, it seems to happen only whits more than 6 items in the list.

Now i wrote my own Map, with two Arrays :(((