Starting the code with -r switch

[Edocecrous]

Hi,
if i start the code on the ch559 with this command:
python3 -m ch55xtool -r

The code starts running on the CH559 (good!)

But I also get the following error:
Found CH559 with SubId:17
BTVER:02.40
UID:72-03-48-BC-00-00-00-00
Traceback (most recent call last):
File "/usr/lib/python3.8/runpy.py", line 194, in _run_module_as_main
return _run_code(code, main_globals, None,
File "/usr/lib/python3.8/runpy.py", line 87, in _run_code
exec(code, run_globals)
File "/home/edo/.local/lib/python3.8/site-packages/ch55xtool/main.py", line 12, in
sys.exit(_main())
File "/home/edo/.local/lib/python3.8/site-packages/ch55xtool/ch55xtool.py", line 898, in main
ret, ret_pl = __end_flash_ch5xx(dev, restart_after = args.reset_at_end)
File "/home/edo/.local/lib/python3.8/site-packages/ch55xtool/ch55xtool.py", line 388, in __end_flash_ch5xx
return cmd_exec(dev, "End", cmd_pl)
File "/home/edo/.local/lib/python3.8/site-packages/ch55xtool/ch55xtool.py", line 141, in cmd_exec
return cmd_reply_receive(dev, cmd_bin)
File "/home/edo/.local/lib/python3.8/site-packages/ch55xtool/ch55xtool.py", line 123, in cmd_reply_receive
reply = ep_in.read(ep_in.wMaxPacketSize, USB_MAX_TIMEOUT)
File "/home/edo/.local/lib/python3.8/site-packages/usb/core.py", line 423, in read
return self.device.read(self, size_or_buffer, timeout)
File "/home/edo/.local/lib/python3.8/site-packages/usb/core.py", line 1029, in read
ret = fn(
File "/home/edo/.local/lib/python3.8/site-packages/usb/backend/libusb1.py", line 846, in bulk_read
return self.__read(self.lib.libusb_bulk_transfer,
File "/home/edo/.local/lib/python3.8/site-packages/usb/backend/libusb1.py", line 954, in __read
_check(retval)
File "/home/edo/.local/lib/python3.8/site-packages/usb/backend/libusb1.py", line 604, in _check
raise USBError(_strerror(ret), ret, _libusb_errno[ret])
usb.core.USBError: [Errno 32] Pipe error

Or this should be normal since the CH559 will be re-set and cuts communication on USB with the PC ?