Try my post again but instead of menu_cleanupgmas try just straight up deleting the zarp workshop content packs from your $/steamapps/common/GarrysMod/garrysmod/addons folder? Then resubscribe to everything and they'll all download (unless you've done this one already)

Try my post again but instead of menu_cleanupgmas try just straight up deleting the zarp workshop content packs from your $/steamapps/common/GarrysMod/garrysmod/addons folder? Then resubscribe to everything and they'll all download (unless you've done this one already)