DelegateModel::cancel: index out range

[buggex]

I sometimes get the following warning from Qt:
"DelegateModel::cancel: index out range 1 0"

I have yet to dertimed what in my code that generates this warning.
I don't have a DelegateModel in the code, so I guess it is part of some built it Qml Item.

Does any one know what this warning means and/or what I should be looking for?

Using Qt 5.9.1

[6thC]

Well we can't help you without knowing at least the components you are using. How about a code snippet of the file throwing this.