Every object in entire project has vertically offset a few pixels [URGENT]

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I don't know how this happened, other than a bug, but I open my project to discover everything in every keyframe has moved down a few pixels. Accuracy is crucial, so this is devastating if it cannot be fixed easily. The grid is set to 20x20 pixels.

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Looks like I cannot edit my first post. I am running MacOS 11.5.2 and using Animate 21.0.8.

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I have talked with support. They are investigating my project file.