No sync icons on files
Some of my files and folders in my iCloud drive don't have sync icons on them. Is there a way to know if they have been successfully synced? Some of the files are large (~3 GB) and I don't know if it's safe to delete them from my other cloud storage provider. Many of the files have been sitting in my drive folder for a few weeks and nothing has changed. I've tried restarting my mac several times but it hasn't helped.
Thanks for any help!
MacBook Air 13", macOS 10.14