After upgrading to the latest version I am having some issues where the rendered mesh is offset from the actual editable mesh object (see image below, left object is OK, right is BAD). Note that I'm not sure in what version this issue appeared.
After messing about for some time I fund that I was able to correct this issue for this object by using 'Center Pivot' and 'Freeze Transform'. However, this issue is now occurring on other newly created objects and the 'Freeze Transform' trick is not working.
Note that when this happens, I cannot edit the mesh via vertices, edges, or surfaces (blue wire frame in image provided) unless it happens to intersect with the offset rendered mesh object.
>>> Speculation >>> I would suspect that the coordinates for the editable wire frame and the rendered mesh are getting out of sync somewhere and that my previous use of 'Freeze Transform' was just a lucky shot in the dark.