Hi,
Can you show the spacing of icons outside of groups too, with auto arrange turned on?
Likewise, can you try disabling Fences (bottom of the Welcome pane) and logging off / on, turning on auto arrange and showing this as well?
it would be helpful if the team could view your debug log. You can access it by going to About → Troubleshooting, enabling “Enable Advanced Logging”, rebooting, then reproducing the problem. You can use “Create error package” from that same menu to send the log package.