[bel]

calibre, version 7.21.0
ERROR: Cannot add books: Failed to add any books, click "Show details" for more information.

Worker process crashed while sending job
Traceback (most recent call last):
File "calibre\utils\ipc\pool.py", line 267, in run_job
File "calibre\utils\ipc\pool.py", line 100, in __call__
File "calibre\utils\ipc\__init__.py", line 22, in eintr_retry_call
File "multiprocessing\connection.py", line 199, in send_bytes
File "multiprocessing\connection.py", line 279, in _send_bytes
BrokenPipeError: [WinError 232] The pipe is being closed


how to reproduce: go into calibre, go to add books>add books from folder> do not treat as multiple copies of the same book.

This error will pop up and the transfer will fail. this used to work but for some reason stopped this week