Hi Lovin,
The log file shows some desynchronization of Timeline and Effect Tab in Key effect index. Well, sometimes appear unexpected combination, I will add a range check and it will solve the problem. The log is not related to what you describe in the first post.
What exactly means "virtual sound source"?
QuickShow uses standard Windows "Wave API", this is classic interface. If "virtual input source" is not compatible with menionted Windows standard then this is a source of problem. Do you want somehow use phone as audio in?
I need to check log files from session when appeared problem with virtual source source. Send it to report at pangolin dot com.
Best Regards,
Alexey.