fwiw - I don’t think my Stack had rotated groups set to ignore Stack layout.
Hi Sam,
Thanks so much for sharing the document! I found the layer that’s causing undo/redo to fail: it’s the hidden CTA group. If you delete it, then Undo/Redo will work as expected.
We’ll look into it and share an update. Thank you for all the time and help! We really appreciate it! 
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