Tracks missing in lexicon in some crates

Here detailled screenshots :

  1. In Serato before use Lexicon :

2022-08-15_08h53_16

  1. In Lexicon on first import :

2022-08-15_08h54_41

  1. In Serato after a sync (without modify any tracks or crate)

2022-08-15_08h58_19

I just see that it is the smallest crate that wins over the hierarchy above.
But it doesn’t do it on every folder.

I didn’t understand your remark about the non compatibility with track in playlist folder ?
Are you talking about the root playlist on Lexicon? I don’t use it.

The basic problem is I lose my tracks in somes folders after a sync.
They are still present in “All Audio” though.

Reading the forum, I think the problem is the same as Engine Parent Crates Empty After Export From Lexicon