The bug report page isnt working, so I'm reporting a bug here. It cannot download any videos using turkish characters in the name. i.e. ç, ş, ö, ğ, ı
For example, this is a video that I've tried to download and failed. Sorry about the mangled link though, xda doesn't yet let me post external links. But I guess you know the first part of it.
Thanks a lot for this great app btw, keep up the good work.