When i attempt to source from an Avid mixdown that is 1:1 the image in the viewer is corrupt.
I will email you a screenshot.
We do know that in version 2.0 you cannot create Avid Mxf 1:1 but in the previous version of 2.0 i was able to at least source from it.
We already have a fix for this. It will be available in our next update.