Painting issues with VB6 Activex

[Meghavi]

Hi,

In my application, i first create a VB6 activex component .
I then create cef browser instance .

If i delete VB6 activex component from the application, some how all my ui on the main thread becomes white...ie nothing is painted on the UI thread.
I am using 1650 branch of cef3 with multithreaded message loop set to false and call DoMessageLoopWork at regular intervals for message loop integration.

This issue though does not happen if i create cef browser instance first followed by creation of VB6 activex component.

The issue resolved if I use 2171 branch.

Would you know what could be the root cause of this issue and how to debug such issues?

Thanks,
Meghavi