If there’s nothing which indicates what that button refers to in the console, then posting the code here might not help much. Just make sure you expanded that entire section and double check, just in case.
On a positive note, it seems you’re not the only one with this issue Cant add second Insteon device to HA - #2 by jr1
EDIT: @emvigelis might have found the answer for you in the meantime thanks to Google images! The screenshot is from 2022 (missing the x10 option), but the button layout should still be the same.
