High Memory Usage in Main Menu and Crash

[candystore]

In the main menu while idling, the game will reach memory usage up to almost 4 GB, even after preloading assets. This often causes game to crash while in the main menu. It has been happening for maybe a month. I attached some mdmp files
OS: Windows 10
GPU: GTX 1080
CPU: Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz
RAM: 16 GB RAM