You receive the following error when adding Listening Rules using Bulk Add tab:
"ERROR There was a problem completing this action. If the problem persists, contact your account manager. Invalid argument supplied for foreach()"
If you receive this specific message when replacing all Listening Rules using the Bulk Add tab in Social > Listening Rules, the upload of terms actually could be successful, but still in process. Check the Active tab periodically to see if the Bulk Add function worked despite the error message.