XCD 21mm Audible NOISE

[AG]

Hello,

I just received my XCD 21mm, along with a fairly audible electronic noise while focusing, and neither does the focus operate as smoothly.
Compared it to the 135mm which does not make any kind of noise and the focus ring is super smooth.

Has anyone experienced this kind of issue ?

Thank you
AG

[JCM-Photos]

Each XCD lens I have among 21 45 80 90 135 makes a slightly different sound for AF, shutter, a slightly different focus ring feeling, but all work well.

[AG]

Thank you,
I just received a 65mm, and as well it sounds different.
This is no longer an issue.