TTIWCheckList drop down


The TTIWCheckList Drop down to display selection choices do not work consistently in Google Chrome.  A click on the control does nothing about 7 or 8 out of 10 times.  If I turn on developer tools (F12) in Chrome the click of the control produces the following error;
Uncaught TypeError: Cannot read property 'style' of null
The 2 or 3 times out of 10 when it does work does not produce any error in developer console.
The control works fine in Internet Explorer and Firefox.
The fact that it does occasionally work leads me to believe that it is some sort of timing issue but not sure why it works in IE and Firefox.
Software Information is as follows;
Windows 7
IE ver 11
Firefox ver. 37.02
Chrome ver.
Delphi XE5
Intraweb 14.50
TMS Intraweb component pack ver 

Forgot Chrome version = Version 47.0.2526.106 m


I have not been able to reproduce this issue.
Does the issue occur when using the control with default settings or are you using a specific configuration?
Can you please provide a ready to run sample project that demonstrates the issue so I can further investigate this?