Ok so i have this memory leak again (and in a new other project i started)
it still look like random for me when it happen, but it seem to be more often happening when i work with my game instance blueprint opened and working with array variable referenced by game instance
and the leak happen so fast, its like editor run fine for seconds, then when the problem appear BOOM memory usage is over 9 000 000K (not the dragon ball z running gag about its over 9000 ^^) and run so slow (normal memory usage is 1 400 000K when editor run good)
i wish i could identify what action does this but i still dont know, i know for sure i have 3 project where this memory leak happen with gameinstance and array inside