Video AI Enhance batch error with video length

When I put several films in batch, VAIE calculates them until the end but at the beginning of the calculation of the next it displays the end of the previous one and when I recover the films they are truncated
On three films in a row, the first (2mn13s) it was missing 4 seconds, the next (4mn 38s) it was 1mn 20s and the third (4mn 52s) it was downright 4mn 38s.
I did not have these problems when calculating films one by one.
I’m on MacOs Catalina with a MacBookPro 2014.

The problem is also there when you only launch one video in VAIE Mac 1.1.1. The result is shorter than the original. The end is systematically truncated.