Forum post link: Massive memory leak in Blueprint Editor introduced with Unreal 4.9 - Blueprint - Epic Developer Community Forums
Dxdiag system specs:
Operating System: Windows 10 Pro 64-bit (10.0, Build 10586) (10586.th2_release_inmarket.160222-1549)
Language: English (Regional Setting: English)
System Manufacturer: Gigabyte Technology Co., Ltd.
System Model: Z87X-UD4H
BIOS: BIOS Date: 06/12/14 19:44:47 Ver: 04.06.05
Processor: Intel(R) Core(TM) i7-4770K CPU @ 3.50GHz (8 CPUs), ~3.5GHz
Memory: 16384MB RAM
Available OS Memory: 16318MB RAM
Page File: 3896MB used, 13221MB available
Windows Dir: C:\WINDOWS
DirectX Version: 12
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 288 DPI (300 percent)
DWM DPI Scaling: UnKnown
Miracast: Available, with HDCP
Microsoft Graphics : Not Supported
DxDiag Version: 10.00.10586.0000 64bit Unicode
Graphics card: Nvidia GTX970