What happened to this question? When I saw it in the review queue, it had 3 votes to migrate to MSE, and 1 vote to close (Yemon's custom reason). But after I cast the last vote to close, it is now put on hold instead of being migrated. Is there an obvious reason why the migration failed?
(For the record, I voted to close because there is already a duplicate on MSE and it felt like it made sense to merge the two versions together at the site where it appears more suitable, given the current phrasing.)