I have found the issue. It seems one of the xml tag is no longer valid and we need to use a different one, so although the update was done correctly, for the updater the package remained with no changes :S.
I have already fixed it for JEvents main package and I'm working on fixing it for the Club Addons translations.
Hopefully tomorrow at this time it will be fixed. I do recommend that you uninstall previous translation packages and reinstall them again although it's not required for normal operation.