That is very strange. I to that daily myself without any issues
What OS ? how is it connect USB2 ? USB 3 ?
Is it a very old device ? (Then maybe try to change configuration so it is not trying to use optimized file copy.. some older devices does not really support that)
Is there any addiontal info in the fileoperations log (Ctrl+L)
Windows 10
Notebook USB 2
Device USB 3
ctrl+l
2019-08-27 17:08:42.916 Handle file Operations error : 4000 (27) -
2019-08-27 17:08:45.274 [2560] WriteThread : User requested abort of operation
2019-08-27 17:08:45.374 [6060] WaitForState : wait for 6 , current state is 6
2019-08-27 17:08:45.375 Current file size not same as expected file size - File : "I:\_upp\jellyfish_250_mbps_4k_uhd_hevc_10bit.mkv", Current Size : 356515840 - Expected Size : 940882316
2019-08-27 17:08:45.395 Handle file Operations error : 165 (0) - File operation aborted. File might be incomplete
2019-08-27 17:08:49.024 Deleted : I:\_upp\inception_trailer.mp4
2019-08-27 17:09:53.812 Deleted : I:\_upp\jellyfish_250_mbps_4k_uhd_hevc_10bit.mkv
2019-08-27 17:10:21.568 [1560] WriteThread - Failed to write to file (Error code : 4000, Internal Error Code : 27)
2019-08-27 17:10:21.573 Handle file Operations error : 4000 (27) -
2019-08-27 17:11:04.232 [1560] WriteThread : User requested abort of operation
2019-08-27 17:11:04.334 [5924] WaitForState : wait for 6 , current state is 6
2019-08-27 17:11:04.334 Current file size not same as expected file size - File : "I:\_upp\jellyfish_250_mbps_4k_uhd_hevc_10bit.mkv", Current Size : 538181632 - Expected Size : 940882316
2019-08-27 17:11:04.652 Handle file Operations error : 165 (0) - File operation aborted. File might be incomplete
2019-08-27 17:11:21.674 [3752] WriteThread - Failed to write to file (Error code : 4000, Internal Error Code : 27)
2019-08-27 17:11:21.716 Handle file Operations error : 4000 (27) -
2019-08-27 17:11:24.192 [3752] WriteThread : User requested abort of operation
2019-08-27 17:11:24.292 [3664] WaitForState : wait for 6 , current state is 6
2019-08-27 17:11:24.292 Current file size not same as expected file size - File : "I:\_upp\inception_trailer.mp4", Current Size : 2359296 - Expected Size : 171150254
2019-08-27 17:11:24.304 Handle file Operations error : 165 (0) - File operation aborted. File might be incomplete
2019-08-27 17:38:21.979 [5700] WriteThread - Failed to write to file (Error code : 4000, Internal Error Code : 27)
2019-08-27 17:38:21.987 Handle file Operations error : 4000 (27) -
2019-08-27 17:38:24.659 [5700] WriteThread : User requested abort of operation
2019-08-27 17:38:24.760 [6172] WaitForState : wait for 6 , current state is 6
2019-08-27 17:38:24.760 Current file size not same as expected file size - File : "I:\_upp\jellyfish_250_mbps_4k_uhd_hevc_10bit.mkv", Current Size : 525598720 - Expected Size : 940882316
2019-08-27 17:38:24.770 Handle file Operations error : 165 (0) - File operation aborted. File might be incomplete
2019-08-27 17:39:06.326 [4924] WriteThread - Failed to write to file (Error code : 4000, Internal Error Code : 27)
2019-08-27 17:39:06.333 Handle file Operations error : 4000 (27) -
2019-08-27 17:39:08.674 [4924] WriteThread - Failed to write to file (Error code : 4000, Internal Error Code : 27)
2019-08-27 17:39:08.681 Handle file Operations error : 4000 (27) -
2019-08-27 17:39:12.076 [4924] WriteThread : User requested abort of operation
2019-08-27 17:39:12.176 [6440] WaitForState : wait for 6 , current state is 6
2019-08-27 17:39:12.176 Current file size not same as expected file size - File : "I:\_upp\panasonic_hokkaido_and_tokyo_uhd.mkv", Current Size : 525598720 - Expected Size : 632152626
2019-08-27 17:39:12.187 Handle file Operations error : 165 (0) - File operation aborted. File might be incomplete
2019-08-27 17:41:12.847 Deleted : I:\_upp\jellyfish_250_mbps_4k_uhd_hevc_10bit.mkv
I tried different methods of copying the error comes out constantly.