Non existing files: ERROR: Could not open path in os_get_final_path

Good Afternoon,
According to my client’s debug log, it tries to access files that don’t exist on that specific client but exist on another… one of my client seemed to get stuck in the midst of doing a file backup… while checking the debug logs on the client I noticed a few errors including this very odd one. it seems to fail opening some files. it turns out that these files are not present on this computer but on another client machine…

Is this expected (part of the dedup logic somehow)?

BTW: Client 2.2.2 Beta / Server 2.2.4

2017-09-05 10:17:02: ERROR: Error while enumerating user groups: 2453
2017-09-05 10:17:54: ERROR: Could not open path in os_get_final_path for "C:\Users\Default\AppData\Local\Microsoft\Windows\INetCache\IE\"
2017-09-05 10:18:06: ERROR: Could not open path in os_get_final_path for "C:\Users\celes_000\AppData\Local\Microsoft\Windows\INetCache\Low\Global\C:\Users\celes_000\AppData\Local\Microsoft\Windows\INetCache\Low\IE"
2017-09-05 10:18:28: ERROR: Could not open path in os_get_final_path for "C:\Users\celes_000\Documents\Arts"
2017-09-05 10:20:14: ERROR: Could not open path in os_get_final_path for "C:\WINDOWS\system32\Arts"