Auxiliary files not being moved when capture occurs on external drive

[iamdamosuzuki]

For some reason I'm getting errors when auxiliary files are being moved to their final location, but only when using external drives. These errors don't seem to be happening when capturing on the system drive. Here's the output from vrecord, you can see the mv errors at the end.

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Guessed Channel Layout for Input Stream #0.0 : 7.1
[Parsed_pan_0 @ 0x7faea5706040] [SWR @ 0x7fae88ec8000] Input channel layout has a different number of channels than the number of used channels, ignoring layout
Input #0, matroska,webm, from 'pipe:':
  Metadata:
    ENCODER         : Lavf59.27.100
  Duration: N/A, start: 0.000000, bitrate: 9216 kb/s
  Stream #0:0: Audio: pcm_s24le, 48000 Hz, 8 channels, s32 (24 bit), 9216 kb/s
    Metadata:
      ENCODER         : Lavc59.37.100 pcm_s24le
  Stream #0:1: Video: v210 (v210 / 0x30313276), yuv422p10le(bottom first), 720x486, 29.97 fps, 29.97 tbr, 1k tbn
[Parsed_pan_0 @ 0x7f844c01f700] Pure channel mapping detected: 0 1
[Parsed_pan_0 @ 0x7f844b720e40] Pure channel mapping detected: 0 1
[Parsed_pan_5 @ 0x7faea6007980] [SWR @ 0x7fae98f88000] Input channel layout has a different number of channels than the number of used channels, ignoring layout
 300.31 A-V:  0.239 fd=  16 aq=    0KB vq=    0KB sq=    0B f=0/0   
mv: /Volumes/CaptureDisk01/20251105/Test01_vrecord_input.log: set owner/group (was: 501/0): Operation not permitted
mv: /Volumes/CaptureDisk01/20251105/Test01_vitc_frame_timecodes.txt: set owner/group (was: 501/0): Operation not permitted
mv: /Volumes/CaptureDisk01/20251105/Test01_frame_eia608data.txt: set owner/group (was: 501/0): Operation not permitted