ID 535505 - When importing a Premiere project with no audio Flix adds audio

Problem summary
When importing an Premiere project with no audio, Flix adds audio 
 
Customer reported version
flix_6.5.0
 
Customer reported platform
 
Steps to reproduce
 
1) Create a 2 panels/scenes project in SBP (without audio)

2) Import the project in Flix

3) Publish it to Premiere
 
4) Without changing anything in Premiere save the project
 
5) Import the project back into Flix
 
Expected behaviour
Panels should stay the same with same panel ids and revisions and there should be no audio.
 
Actual behaviour
Panels are correct, but on the roundtrip from Premiere, Flix imports an audio file, which was never added
 
Workaround
Unknown. 
 
Reproduced by support
OSX 
Flix 6.5
SBP 20
Premiere 20