WaitAliasChild Timeout Not working

Hi , 

Some how WaitAliasChild time out is not working. Though I specify the timeout in Method, It still expires after default timeout

What Am i doing wrong here ? 

Here is the Code 

'Verify Key Charactestics
If Aliases.firefox.PitchbookHomePage.panelE14d830c3.panelSlide.WaitAliasChild("vg",20000).Exists Then
Call Regions.Characteristics_00R_Prospect_Jan_2015.Check(Aliases.firefox.PitchbookHomePage.panelE14d830c3.panelSlide.vg,false,false,50,50)
End If