The formula figure in the semantics section of 5.18.77 TDIST is missing from the version currently under ballot to become CD1. My version of the document has a missing figure symbol in its place.
This appeared to have happened during the removal of testcases etc. in preparation of the vote.
Note that when http://tools.oasis-open.org/issues/browse/OFFICE-2296 is applied this problem might be fixed anyways, but at issue is to avoid repetition of this problem during the "stripping" process.