version 2.75 (sub 0), branch b'master', commit date b'2015-07-07' b'14:56', hash b'c27589e', b''
build date: b'Wed 07/08/2015', b'10:38 AM'
platform: b'Windows', GTX 750 Ti
Using the "Lens Distortion" type "Divisions" does not work in VSE:
In the attached file, change K1, K2 or K3 and see that it immediately effects the backdrop in the Compositor. It also effects the VSE as soon as the time is changed; rendering via F12 yields the result corresponding to the preview in the movie clip editor and in the backdrop.
Change "Lens Distortion" to "Division" and change the value for K1 or K2. You will immediately see changes in the movie clip editor, but not in the backdrop or in the VSE. When rendering via F12, you will still obtain the result when you rendered with "Polynomial".
I hope this is comprehensible.
P.S.: I am not sure how to categorize this bug, so I choose all used components.