Internal server error when sharing folders

Hi, is there some kind of limitation with sharing folders? I'm trying to share 5.4k folders and I'm getting 

PollError('internal_error', None))

 

consistently. Sometimes the files share, sometimes they don't. I can manually share them no problem and usually I can share them as one offs in a python REPL using the dropbox sdk.

There are no error details.

My code is functionallt simialr to the snippet below:

import dropbox

#censored
access_token = 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX'
dbx = dropbox.Dropbox(access_token)

def get_entries(folder_result_list):
    '''using this so we don't try and share the same folder twice'''
    entries = []
    for entry in folder_result_list.entries:
        if not hasattr(entry,'shared_folder_id') and not entry.shared_folder_id:
            entries.append(entry)
    return entries

folder_result_list = dbx.files_list_folder(parent_folder,include_mounted_folders=False,limit=2000)
entries = get_entries(folder_result_list)

while folder_result_list.has_more:
    folder_result_list = dbx.files_list_folder_continue(folder_result_list.cursor)
    entries.extend(get_entries(folder_result_list))

#filter for only FolderMetadata so we don't try and share DeletedFolder's or individual files    
entry_dict  = {entry.id:entry for entry in entries if isinstance(entry,dropbox.files.FolderMetadata)}

for index,keyval in enumerate(entry_dict.items()):
    entry_id = keyval[0]
    entry = keyval[1]
    try:
        #forcing async so we get consistent results. checking the job status and doing stuff with the shared_folder_id later on in the script
        entry_id_to_job_id[entry_id] = dbx.sharing_share_folder(entry.path_lower,force_async=True).get_async_job_id()
    except dropbox.exceptions.ApiError as e:
        #do some logging of errors here
        pass

The full error looks something like this:

ApiError('0ed9d04d8f01449b5dedea33b7445fee', PollError('internal_error', None))