Same with me.. Not able to do it since recently.
Drawing arrows and marking squares during lives games no longer allowed?
I replied to the same thing on another post titled "Drawing arrows" theres a setting that is turned off. Check it out and turn it back on.

I replied to the same thing on another post titled "Drawing arrows" theres a setting that is turned off. Check it out and turn it back on.
Are you running the beta babushx? I read the post where you replied with a picture but I can't pull up a menu like the one you pulled up. I've tried a couple different settings 'cogs':
bottom left flyout menu 'Settings' cog - can't find the arrows checkbox
Play>Top Right Corner of Board Settings Cog - no option for drawing arrows
Play>Bottom Right Settings Cog in Moves Pane - Takes users to normal settings menu

Found my answer from another post after doing a bit more searching. Posting this to help others who find this thread:
You have here: (don't understand why these settings options are so different)
Hover over 'Play' and click 'Live Chess' and the top right cog gives you the option to turn arrow on or off
This does not solve the issue of drawing arrow in day games though, just in case a user that only plays day games is looking at this. There is still no way that I can find to draw arrows in day games (in beta at least)
Source:
https://www.chess.com/forum/view/livechess/using-the-right-click-by-dragging-clicking-on-the-piece-of-square
I can't seem to be able to draw arrows by right-click/dragging or mark squares by right clicking on them. In analysis boards it works fine, however. Did Chess.com disallow these features during live games?