ERROR:SOUND: Invalid Name

What this error means?

ERROR:SOUND: Invalid Name
Assertion failed: Capacity() - Size() > 0, file C:\buildbot\slave\builds\engine-win32-64-beta\build\tmp\dynamo_home\sdk\include\dmsdk/dlib/array.h, line 464

It’s printed at the beginning of the runtime (in Editor) when I click outside the window with a game and then the game hangs and the next output is a window with “dmengine has stopped working”
There is indeed a not-looped sound started playing at the beginning. I use OpenAL, but in this case that is just the regular Defold sound component.

The most interesting thing is that it occurs sometimes, not each time…