Same credentials for multiple instances

Similar to other questions/issues, namely #22, is it possible to use the same credentials/link for multiple containers? I've tried mapping and sharing `.dropbox` using `--volume`, but it does not appear to work correctly. Sometimes the containers don't start correctly and sometimes they don't sync at all or only partially. If I link each container independently by leaving the `.dropbox` folder unmapped and, instead, only map the data, everything works fine.

On a related note, has anyone had trouble with multiple instances not starting correctly without delays or manual restarts? My main issue is file counts, which is why I am running multiple instances. My office file server has 4 million files and the Dropbox client turns into mush after syncing approximately 350k files. To get around that, I am running 10 docker instances all linked to the same account with different excluded folders, which works fine once everything is up and running. Unfortunately, they don't always start properly and I had to link each instance individually instead of relying on one set of credentials. Maybe I didn't do it correctly, but I haven't seen any information that says sharing credentials should work the way I'm describing.

No source file or test is named in the issue. Start by reproducing the reported setup with multiple Docker containers sharing the .dropbox volume, then compare startup and sync behavior with independently linked containers. Done means the shared-credentials behavior and startup reliability are clearly established and the resulting fix or limitation is documented.

Written by the indexing model from the issue text.