Windows 10 latest insider builds crashes when save file or browse file

In recent insider builds, lots of desktop apps crashes upon saving a file or browse for a file. The error is something as below

Unhandled exception at 0x00007FFA166E134D (shell32.dll) in Xamarin Workbooks.exe: 0xC0000005: Access violation writing location 0xFFFFFFFFFFFFFF8B.

Now I am using the Build 15063.14 with latest updates. This is really really frustrating as I cannot attach a file as attachment in outlook.com with Google Chrome or save a workbook in Xamarin Workbooks.

This error happens on both my machines which both run insider builds