Bug in Unity 5.5.1f1 when editing Trigger on multiple AKAmbient-Components at once

Question

I'm encountering a bug using Wwise 2016.2.1.5995 and Unity 5.5.1f1 under Windows 7. Here's how to reproduce it:

• create a scene with multiple GameObjects, all bearing an AK Ambient component and an AK GameObj component
• each of the AK Ambient components is triggering a different event at the start of the game
• create a custom trigger component and insert it on every GameObject as well and call those triggers e.g. from the start function
• select all of the GameObjects and multi-edit the AK-Ambient-components' trigger settings from "start" to that new custom trigger
• I no longer hear all of the sounds playing. When I check in Wwise's profiler, I can see that only one or two sounds from 34 are actually playing, while all the events have been triggered. However, the correct events are still selected in the AK Ambients settings of each GameObject, but somehow the connection between the events and the sounds has been altered.

To fix it, I have to delete all AK components on the GameObjects and then manually drag and drop the events from Wwise picker onto the objects again. Then, the correct sounds will play again.