[raptor2003]

Originally Posted by Jiaz

@raptor: YYYY (Week year) is something complete different than yyyy(Year)
see docs.oracle.com/javase/7/docs/api/java/text/SimpleDateFormat.html
you have to use yyyy in your pattern, then it works fine
see also errorprone.info/bugpattern/MisusedWeekYear

Oh yes it works !

Makes sense that it was happening for videos starting 28/12 then.

Thank you.