Corrupted Files

Hi,
transferring a MuseScore v3 file across to v4 (via a USB thumb drive) from PC to Mac machines.
File shows that it is now corrupted and I can not resolve the problem.

see copied details:
Incomplete bar: Part score: Part 1, bar 1, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 2, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 3, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 4, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 5, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 6, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 7, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 8, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 9, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 10, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 11, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 12, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 13, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 14, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 15, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 16, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 17, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 18, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 19, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 20, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 21, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 22, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 23, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 24, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 25, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 26, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 35, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 36, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 37, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 38, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 39, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 40, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 41, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 42, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 43, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 44, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 45, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 46, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 47, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 48, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 51, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 52, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 53, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 54, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 55, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 56, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 57, stave 2. Found: 0/1. Expected: 4/4.
Incomplete bar: Part score: Part 1, bar 58, stave 2. Found: 0/1. Expected: 4/4.

Cheers,
Mark