sentences lost when runs force_align

[duterscmy]

I have train a model on a big corpus, and then I want to obtain align result on some new data.
Like ./scripts/force-align-moses.sh, the .vcb .cooc files are new generated and the .classes use existed files, then use mgiza to obtain results.
However，there are nearly a half of sentences are lost in en2cn.A3.final.part000-047, hence I can't use ./scripts/merge_result.py to merge results.
Where could be my problem???

[duterscmy]

"lost" means that the align results of these sentence are not appeared in en2cn.A3.final.part000-047

[duterscmy]

the error maybe WARNING: Hill Climbing yielded a zero score viterbi alignment for the following pair: AL(l:7,m:3)(a: 5 6 7 )(fert: 0 0 0 0