I did some tests of the Wraptor DCP creator in Adobe Media Encoder.
Certain combinations of source footage frame size and sequence frame size resulted in cropping of the image, rather than the appropriate letter- or pillar-boxing within the 1998x1080 1.85:1 "DCI Flat" frame size that the bundled Wraptor DCP plugin creates.
Here are the results: http://johnpilgrim.net/client/reference/DCP/Wraptor-tests-20150524/
Thoughts? Similar experiences? Workaounds? Errors in my methodology?