I have made an additional check with our development team and it seems that we currently don't support UIAlertView. Actually it was supported some time ago, but then Apple moved UIAlertView out-of-process, and since our plugin runs within the application process, we are unable to access it currently without more research.
The issue is logged into our backlog and will be resolved in future releases of the product. I have also contacted out documentation team so that it is duly documented in our known issues section.
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