Version 1.1.383 ALWAYS crashes when trying to create a new project on Windows 10 x64

For a Empty Rstudio which just started with no projects, click create new projects——Doooon, Crash, No reactions. Actually you can only "Open" a Project.

When I already have a project working on, click New Project, also crash.

When it went wrong in running a loop or building packages, if you click the red point(which will stop R running manually), Dooooon, it crashes.

Always, I have to stop the session by Windows Task Manager, because clicking the "X" of Rstudio on the head right, can only get a waiting circle forever. And never close the program.

Also, if it crashes, you can not save the file editing, but it just stays there, you can click buttoms of Rstudio, but nothing happens.

Quite strange.

R version 3.4.2 (2017-09-28)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows >= 8 x64 (build 9200)

Matrix products: default

[1] LC_COLLATE=English_United States.1252
[2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252
[5] LC_TIME=English_United States.1252

attached base packages:
[1] stats graphics grDevices utils
[5] datasets methods base

loaded via a namespace (and not attached):
[1] compiler_3.4.2 tools_3.4.2

When I just started Rstudio, the processes which are running


But when I click New project, The Rstudio just hang~ Then the processes which are running


Does that mean that Rstudio wants to change to a new instance but something stuck there?