Thanks for writing.
It seems that this error is somehow related to the TiltInteractionEffect. Based on the stacktrace alone, however, I cannot exactly say why this happens. Maybe if you share with us some more details about the setup we will be able to diagnose the problem.
For instance, can you describe what type of controls are you using? If you can share the XAML structure of your page, we will be able to get more context and thus identify possible reasons for this exception.
Thanks for your time.
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