mkdir says folder exists even though it doesn't show with ls -a

Arch linux. I have a CIFS mount from my NAS that was mounted with full permissions # line from my fstab //IP_ADDRESS/path/to/dir /path/to/local/dir cifs uid=my_user,gid=my_group,dir_mode=0777,file_mode=0777,credentials=path/to/my/creds 0 0 and am trying to create a directory, however this fails mkdir path/to/local/dir/subdir mkdir: cannot create directory '/path/to/local/dir/subdir': File exists However as far as I can tell it *doesn't* exist: ls -la path/to/local/dir drwxrwxrwx me me 0 date . drwxrwxrwx me me 0 date .. And looking at the files on my NAS that subdirectory does not exist on the remote. I'm stumped. And I can search for this, it just turns up a bunch of results where people didn't understand what dotfiles are. What gives? # Edit Since I got some pushback on the particulars (fair enough), here are the **exact** commands and output. The /mnt/nas/SteamLibrary folder is the local mount point for the folder on the NAS. [I] ⋊> ~ ls -la /mnt/nas/SteamLibrary/steamapps/downloading 17:19:56ls: cannot access '/mnt/nas/SteamLibrary/steamapps/downloading': No such file or directory [I] ⋊> ~ mkdir /mnt/nas/SteamLibrary/steamapps/downloading 17:20:33mkdir: cannot create directory ‘/mnt/nas/SteamLibrary/steamapps/downloading’: File exists [I] ⋊> ~ ls -la /mnt/nas/SteamLibrary/steamapps/ 17:20:41total 108K drwxrwxrwx 2 jsmith jsmith 0 Apr 18 21:30 . drwxrwxrwx 2 jsmith jsmith 0 Apr 19 13:49 .. drwxrwxrwx 2 jsmith jsmith 0 Apr 17 16:05 common drwxrwxrwx 2 jsmith jsmith 0 Apr 17 16:04 compatdata drwxrwxrwx 2 jsmith jsmith 0 Apr 17 16:03 shadercache drwxrwxrwx 2 jsmith jsmith 0 Apr 17 16:05 temp drwxrwxrwx 2 jsmith jsmith 0 Aug 10 2020 workshop -rwxrwxrwx 1 jsmith jsmith 1.2K Feb 27 16:40 appmanifest_102500.acf -rwxrwxrwx 1 jsmith jsmith 686 Feb 27 16:40 appmanifest_107300.acf -rwxrwxrwx 1 jsmith jsmith 694 Feb 27 16:40 appmanifest_107310.acf -rwxrwxrwx 1 jsmith jsmith 498 Apr 19 13:50 appmanifest_1391110.acf -rwxrwxrwx 1 jsmith jsmith 483 Apr 19 13:50 appmanifest_1493710.acf -rwxrwxrwx 1 jsmith jsmith 745 Feb 27 16:40 appmanifest_207320.acf -rwxrwxrwx 1 jsmith jsmith 863 Feb 27 16:41 appmanifest_219780.acf -rwxrwxrwx 1 jsmith jsmith 691 Apr 17 16:03 appmanifest_22320.acf -rwxrwxrwx 1 jsmith jsmith 837 Apr 19 13:50 appmanifest_22330.acf -rwxrwxrwx 1 jsmith jsmith 516 Feb 27 16:59 appmanifest_256460.acf -rwxrwxrwx 1 jsmith jsmith 1.2K Feb 27 16:59 appmanifest_292030.acf -rwxrwxrwx 1 jsmith jsmith 825 Feb 27 16:40 appmanifest_312540.acf -rwxrwxrwx 1 jsmith jsmith 1.1K Apr 17 16:03 appmanifest_340170.acf -rwxrwxrwx 1 jsmith jsmith 1.1K Feb 27 16:40 appmanifest_351970.acf -rwxrwxrwx 1 jsmith jsmith 894 Feb 27 16:40 appmanifest_367500.acf -rwxrwxrwx 1 jsmith jsmith 773 Feb 27 16:40 appmanifest_372360.acf -rwxrwxrwx 1 jsmith jsmith 1.5K Feb 27 16:37 appmanifest_379720.acf -rwxrwxrwx 1 jsmith jsmith 599 Apr 17 16:20 appmanifest_391540.acf -rwxrwxrwx 1 jsmith jsmith 665 Apr 19 13:49 appmanifest_406110.acf -rwxrwxrwx 1 jsmith jsmith 685 Feb 27 16:59 appmanifest_418340.acf -rwxrwxrwx 1 jsmith jsmith 794 Feb 27 16:40 appmanifest_429660.acf -rwxrwxrwx 1 jsmith jsmith 985 Feb 27 16:40 appmanifest_489830.acf -rwxrwxrwx 1 jsmith jsmith 612 Feb 27 16:59 appmanifest_506510.acf -rwxrwxrwx 1 jsmith jsmith 667 Feb 27 16:41 appmanifest_522530.acf -rwxrwxrwx 1 jsmith jsmith 708 Feb 27 16:41 appmanifest_525240.acf -rwxrwxrwx 1 jsmith jsmith 891 Apr 17 16:03 appmanifest_538680.acf -rwxrwxrwx 1 jsmith jsmith 1.1K Feb 27 16:40 appmanifest_72850.acf