AssertionError but don't know why

[netAction]

I tried to repair a file from Insta360 X2 but movrepair crashs. Python 3, Windows 11.

python movrepair.py VID_20220605_135052_00_024.insv --repair VID_20220605_134145_00_023.insv
Output file: VID_20220605_134145_00_023-fixed.insv
Traceback (most recent call last):
File "C:\Users\schmi\OneDrive\Desktop\Videoretten\movrepair.py", line 277, in
sys.exit(main())
File "C:\Users\schmi\OneDrive\Desktop\Videoretten\movrepair.py", line 267, in main
return repair_file(reference, broken, output, do_fix_metadata=not args.no_fix_metadata)
File "C:\Users\schmi\OneDrive\Desktop\Videoretten\movrepair.py", line 186, in repair_file
for atom in MovAtomR.make_root(reference).iter_atoms():
File "C:\Users\schmi\OneDrive\Desktop\Videoretten\movio.py", line 146, in iter_atoms
atom.skip()
File "C:\Users\schmi\OneDrive\Desktop\Videoretten\movio.py", line 129, in skip
assert nbytes >= 0
AssertionError

[HanalogInstruments]

Look like your files doesn't have moov atom, try to use hxd editor and find "mdat" and "moov"