Unity 5.5.0f3: GC.MarkDependencies taking huge amounts of time

This Problem appeared just recently in 5.5.0f3 . I'm using Vuforia in an iOS project. It's deactivated though in the Apps start screen. In fact nothing is going on, just waiting for user input. Every 3rd frame, GC.Markdependencies is taking 136ms for... I don't know. Is this normal? How can I avoid this?

 

Hi, unfortunately we do have an issue with this present in other versions of Unity. I'll try to see if the team knows about its presence in 5.5 as well!