Please describe what you are doing to trigger the bug:
Backup or copy with multiple threads
Please describe what you expect to happen (but doesn’t):
The backup or copy should succeed,
Please describe what actually happens (the wrong behaviour):
The backup fails with a “too many write operations” error.
Dropbox will respond with a 429 response code and
Retry-After header. Sleeping for that many of seconds and retrying will allow the operation to succeed.