Intersected Geometery does not update correctly after feature change

[alan.jonesXHXUF]

Video and f3d files attached (hopefully!)

Basically created two offset planes, a sketch on each intersecting 2 sheet metal components, used these projections to create further sheet metal components. Later updated the offset of the sketch planes, and the projected geometry becomes corrupted. https://www.youtube.com/watch?v=U2XgSgnIXCM&ab_channel=AlanJones