Transmission-daemon can no longer find torrent files

I am running transmission-daemon version 3.00 on Debian Bookworm. I was messing around with permissions on my setup and I seem to have borked the transmission-daemon's ability to access its usual directory. As of a few days ago transmission can no longer find the torrents, occasionally tries to create the specified (already existing) directory, and can no longer download new media from magnet links. (Note that /home//Downloads is a symlink to /data/Downloads.) These are the relevant errors in the 'journalctl' log:

Couldn't create "/home//Downloads/tmp": Permission denied (file-posix.c:243)
 No data found! Ensure your drives are connected or use "Set Location". To re-download, remove the torrent and re-add it. (torrent.c:574)

Here are the permissions on the relevant directory tree:

permission : directory
777 : /data
777 : /data/Downloads
775 debian-transmission:debian-transmission /data/Downloads/tmp

Oh, and my user account is in the debian-transmission group, and the user debian-transmission is in my user group. EDIT: My home folder (/home/) had restrictive permissions (700). Feel so dumb for missing that. Changed to 775 and everything is back to normal. Gotta remember that namei -l command.