Metallic Sound from Auto Transmission

Hi All,

Hope Ye are well.

I have recently sold my 2012 diesel Forester, and bought a 2017 diesel Outback. The Outback is an auto gearbox. I've had it about a week. and have noticed a slightly metallic sound, like light metal rubbing maybe?? when i am driving off, not right at the initial movement, but within a few seconds of taking off..

any ideas?

I'm not too familiar with the sounds and running of the CVT transmission yet, so want to check.

thanks for any help and advice, its much appreciated