Steps to reproduce the problem:
Tap and drag on Android apps

What is the expected behavior?
Tapa and drag should work

What went wrong?
I am facing an issue lately after a security update in chromebook r11 acer with regards to tap and drag.  
The tap and drag feature is not working in chromebook though it worked previously and it works fine even today in tablet and phone. Additionally, looking at the crash log I couldnot locate some methods like performDraglw in source code. Could you please help.

following is the log of the scenario:

01-05 17:14:00.377 300-625/? E/WindowManager: Window Session Crash
                                              java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.ClipDescription android.content.ClipData.getDescription()' on a null object reference
                                                  at com.android.server.wm.WindowManagerService.performDragLw(WindowManagerService.java:8004)
                                                  at com.android.server.wm.WindowManagerInjector.performDrag(WindowManagerInjector.java:263)
                                                  at com.android.server.wm.Session.performDrag(Session.java:320)
                                                  at android.view.IWindowSession$Stub.onTransact(IWindowSession.java:567)
                                                  at com.android.server.wm.Session.onTransact(Session.java:149)
                                                  at android.os.Binder.execTransact(Binder.java:565)
01-05 17:14:00.379 2912-2912/? E/View: Unable to initiate drag
                                       java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.ClipDescription android.content.ClipData.getDescription()' on a null object reference
                                           at android.os.Parcel.readException(Parcel.java:1690)
                                           at android.os.Parcel.readException(Parcel.java:1637)
                                           at android.view.IWindowSession$Stub$Proxy.performDrag(IWindowSession.java:1315)
                                           at android.view.View.startDragAndDrop(View.java:20729)
                                           at android.view.View.startDrag(View.java:20626)

Did this work before? N/A 

Does this work in other browsers? N/A

Chrome version: 63.0.3239.116  Channel: n/a
OS Version: 7.1.1
Flash Version: