JUCE Assertion failure in juce_ArrayBase.h when accessing the Combo box

Hello,

I have a GUI application that value tree with few child components to VT root,
I am using sendPropertyChangeMessage(“childNode”) on VT nodes, to inform property changes and make a callback to valueTreePropertyChanged()

but running into exception even on just launch of application, no Combobox is accessed yet.

Can anyone help in understanding the cause?

The ‘index’ is out of range. Look at the stack trace to see what code is invoking this call, and why it is passing an invalid index