There shouldn't be a problem. As long as the path is correctly configured in the options and the plugin is present, Qtractor loads it correctly, regardless of the path in the session. It's always been this way.
I know the problem I'm describing is silly, but this way you don't have to keep cleaning up files if you want to share them. More than a real risk, it's because it doesn't look clean in a session document, which is, for example, a template, an exercise, or a demo... since your user paths appear there.
There shouldn't be a problem. As long as the path is correctly configured in the options and the plugin is present, Qtractor loads it correctly, regardless of the path in the session. It's always been this way.
I know the problem I'm describing is silly, but this way you don't have to keep cleaning up files if you want to share them. More than a real risk, it's because it doesn't look clean in a session document, which is, for example, a template, an exercise, or a demo... since your user paths appear there.