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Pinch to Zoom crashes on iOS when app contains PDF Viewer

I'm running an app on an iPad and somehow it's now able to use pinch-to-zoom, which zooms in on the entire app (Yay!).


However, quickly zooming in and then zooming out causes the app to crash and restart.


From my testing, this seems to happen due to the presence of a PDF Viewer in the app.


I have tried:

- Every combination of "Scale to Fit", "Lock Aspect Ratio", and "Lock Orientation" settings.

- Disabling "Improved App Rendering"

- Setting the PDF Viewer's zoom to "Disabled"


Once again, this is a separate (but likely related) issue to the PDF Viewer's zoom functionality crashing on iOS. This crash does not result from using the PDF Viewer's zoom, but the general function of pinching to zoom on the entire app.

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