The clips are processing now. What I tried is this:
1. Make sure that Anamorphic is checked for all clips in the Browsr
2. Load Multiclip in Viewer
3. Reveal clip in Browser
4. Drag back to corresponding angle
5. Pop up shows: Add angle or replace affilliates
6. Choose replace affiliates
I'll let you know what happens in around 20 minutes. It's "cooking".