User blog comment:Rappy 4187/Technical Update: May 20, 2014/@comment-1824272-20140524021612/@comment-957747-20140525034335

Part of this isn't a bug. Adding the nowiki's is due to the template logic of double ='s in a parameter. To bypass this, I changed them to youtu.be links which do not have an = sign.

As far as the VE removing the 2=, please send that in to Special:Contact so it can be investigated. Thanks.