Clicking sounds after Form1 boots and after upgrading to firmware 1.3f?

I noticed that after the initial “brrrrrrrrrr” sound upon boot, my Form now “clickety clacks” a few times before “ready to print”. Is this normal operation?

I’m around a lot of ambient noise, but I’m pretty sure this is something new. I did upgrade to firmware 1.3f recently. Formlabs, please discuss. Others, please comment if you are experiencing the same thing.

I will post a sound clip if required. Essentially it sounds like intermittent clacking before the machine goes silent. The Form still seems to be operating nominally.