QTP clicking on WpfImage is not working, but it is highlight it

[Prashanth]

Hi All, I have an issue.
I am working on Wpf form, i need to click on wpfimage button,

Below piece of script

Code:

WpfWindow("classname:=***").WpfImage("classname:=***","devname:=***","devnamepath:=***").highlight

works fine

but,

Code:

WpfWindow("classname:=***").WpfImage("classname:=***","devname:=***","devnamepath:=***").click

is not working, it is neither throwing any error also. it simply does nothing.

Please let me know the reason why this is happening, i have installed all plugins, i am using trial version of qtp11, i got the system formatted 1 week back, it is not working after that.

But the same thing worked fine before formatting the system