Hi Michael.

I ran into a problem with the Edit Frame when using it to mirror an ellipse. Both need to be tangent to one another for later trimming, so the mirror needs to be accurate.
It seems the correct bounding box dimensions are available in the Edit Size box, but MoI is not using them in this instance. The linked video shows the problem quite well.

https://vimeo.com/826851944?share=copy

Thanks.
Martin.