Unable to bind an existing ViewModel instance to modal-body content-view

[DavidBLynch]

I'm trying to use the aurelia-bs-modal, and everything is working except my modal-content. I'm doing:

<modal-body content-view.bind="taskInstance"> 

where _taskInstance_is an already constructed viewModel (with corresponding template). When rendered the template corresponding to taskInstance is not loaded.

Then taskInstance template loads fine when I use:

<compose view-modal.bind="taskInstance">