Certain resolutions make jobs fail w/ watermark on in Compressor 3

Compressor FCS3 on OSX 10.6.8 - turns out that certain frame sizes can prevent jobs from running along with a watermark filter.

I had an H.264 setting with resize to 854x480 (essentially 480p 16:9 with square pixels). Whenever I tried to add a watermark it would fail ("3x crash service down", quicktime error -50). It worked fine without the watermark.

I tried different file locations, files, codecs, and Digital Rebellion's Compressor Repair. It wasn't that. As soon as I changed the resize to something else like 864x486 (with watermark), everything worked.