Hi. I’m using ue4 editor well 
and good.
But now I’m experiencing a critical bug in editor.
Every time I open blueprint editor, the usage of memory increases, I mean repeating on a same blueprint.
Do you realize this problem? I didn’t know that before I turned on ‘show Frame rate and Memory’.
Ah, the number of objects never decrease.
So Now, I understand why ue4 editor is getting slow during developing.
Hi ,
I was able to reproduce this and am attaching this page as well as my findings to a bug report for assessment. Thank you and have a great day!
a bug fixed? I can still see that problem :p.
In addition to it, you may know that all kinds of sub-editors like Persona and etc cause same problem too.
Hi ,
Are you seeing this memory leak on the most recent version of the editor?
Yes, I’m seeing it in 4.5.1.
I repeated this in my project and Content Examples.
Both also has a same result.
Hi ,
This has been reported and is currently being assessed by the development staff. Thank you!