Steenamaroo
...
OK, looks like you have to bounce the track and bring it back it. That seems rather strange for such an advanced DAW not to support.
I've always found it to be a really efficient DAW man. It's not a function I've ever wished for, to be honest.
I've certainly never had to bounce/import before.
The OP even says he doesn't get this problem on his much weaker laptop, so I guess there's something else at play.