Add Audio still broken

I'm getting the same problem I was having in version "t" where after picking Add Audio, you select the file, but the input box remains blank. Typing in the path yourself doesn't help either. Encode fails because stream numbers don't match (I'm asking it to encode audio, but it's not adding it)

I thought this was supposed to have been fixed in "u"?

Sorry, this one went too down in my to-do list. I put it at the top for a quick fix.

Cheers, major, much appreciated!