[fvdham]

Sometimes when downloading metadata and covers for more than 1 epub I get the following error:

calibre, version 5.3.0 (win32, embedded-python: True)
Failed to download metadata: Failed: Download metadata for 9 books

Starting job: Download metadata for 9 books
Job: "Download metadata for 9 books" failed with error:
Traceback (most recent call last):
File "calibre\gui2\metadata\bulk_download.py", line 249, in download
File "calibre\utils\ipc\simple_worker.py", line 251, in fork_job
File "calibre\utils\ipc\simple_worker.py", line 176, in run_job
File "calibre\utils\ipc\simple_worker.py", line 119, in communicate
calibre.utils.ipc.simple_worker.WorkerError: Failed to communicate with worker process

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "calibre\gui2\threaded_jobs.py", line 83, in start_work
File "calibre\gui2\metadata\bulk_download.py", line 254, in download
Exception: Failed to download metadata. Original traceback:

Traceback (most recent call last):
File "multiprocessing\connection.py", line 312, in _recv_bytes
BrokenPipeError: [WinError 109] De pipe is beëindigd

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "calibre\utils\ipc\simple_worker.py", line 54, in run
File "calibre\utils\ipc\__init__.py", line 23, in eintr_retry_call
File "multiprocessing\connection.py", line 250, in recv
File "multiprocessing\connection.py", line 321, in _recv_bytes
EOFError


Called with args: ([8139, 8138, 8137, 8136, 8134, 8133, 8132, 8130, 8129], 'C:\\Users\\Fred\\AppData\\Local\\Temp\\calibre_rp klfjqi\\qf6virkv_metadata_bulk.log', <calibre.db.legacy.LibraryDatabase object at 0x1956F508>, True, True, None) {'notifications': <queue.Queue object at 0x1DC68E50>, 'abort': <threading.Event object at 0x072D6040>, 'log': <calibre.utils.logging.GUILog object at 0x072D63E8>}

I use de metadata sources BOL_nl, Google and Google images

Using the "Edit metadata individually" option I get no errors.
I have the feeling it has to do with the situation that their is no metadata for one of the book available.

Any idee?