Crash when using connect() (presumably from dynamic created item in a Loader)

I have a hard-to-reproduce crash that I think is related to this scenario:

Item is loaded via Loader

The Item dynamically creates NewItem via .incubateObject

When NewItem is created - a connect is made via a callback fired on incubation success - to it's onDestruction like so:

newItem.onDestruction.connect(function(){ ... })

Sometimes there's a crash when the Item (loaded via a Loader) is unloaded.

I can't tell exactly where in the line of calls it happens - and I found out that the segmentation fault is currently only when I run from a Debug build

Stack trace attached