Semi-bump: this is a real problem, but you don’t notice it until you really notice it. I have been doing a lot of remixes the last couple of years, and this feature is the cause of a lot of frustration. Imported audio is automatically time stretched to fit whatever tempo the project is set to, which of course is the arbitrary clock of your starting template. If the tempos are just slightly off, you may not even notice it–before you’ve made a lot of edits etc. As others have said: don’t mess with imported audio, unless I ask you to. In other words, this (time stretch on import) should be an option, and it should be OFF by default, regardless of the setup of the rest of the project (musical/linear time base etc).
On a side note: it does seem that audio originating from Live also has stretch-inducing metadata embedded, so beware.
r,
j,