Hi!
As i've got an answer from support team " to get all V6.1.0 Features displayed correctly (also waveforms) you need to create a new Project. If you load a project file from an old version audio is not handled with new features.
Please try playing back wav audio in a new project". Does it means that I can't import our old project from 5.10.rev.13378 correctly to new version V.6.1 ever? To reproduce of the old project in the new version is rather a complicated and inconvenient task and the possibility to import is to my mind is the vital task.
Nikolai