Image source not updating in listview after property updated in observablecollection

I'm databinding an observablecollection to a listview, and inside a viewcell I have an image, binding the source to a property of the collection items using a converter.
Source="{Binding Status, Converter={StaticResource StatusToImageConverter}}"

This does the job when the page loads, but when the item is clicked, I update the status on the item clicked and expect the image to change, however it doesn't and it doesn't hit the converter either.

I have checked that the item is updated which it does, I then call OnPropertyChanged("MyObservableCollection"); but still nothing. If I go back to the previous page and then return, it has updated then.

Any ideas what I'm doing wrong?