Upgrading my 4.6 project to 5.0 still shows old AudioSource editor controls

After upgrading my project to 5.0 all my AudioClips are played too silently. After consulting the docs I found out there was supposed to be a slider to set the AudioSource to 2D. However, I don’t see the new editor controls of Unity 5 but still the ones from Unity 4.x. Any ideas how to fix this? Thanks!

Yes, it was the SmartLocalization Asset I got from the asset store. It’s apparently not working with Unity 5 and messed up the AudioSource component view for some reason. After throwing it out of the project everything worked fine