I don't understand the brown circles that appear in the GCode viewer running in Firefox on a Mac and Windows 11. I have never seen these for gcode I have sliced. They appear intermittently in files sliced by users in the makerspace I run.
Here is a link to a screen shot: https://photos.app.goo.gl/pSxkhPV3oea6UCeM7
I searched the forum and Google, but don't see any reference to these. All machines are running Octoprint 1.9.3
Thanks for any light you can shine on this.