Txt with unicode unredeable

NXT is shorter than Nextcloud server !
Nextcloud server 12.0.5 --> 13.0.0 no problems so far
based A8-6500 8GO RAID6 8*6TO
4.9.0-5-amd64 #1 SMP Debian 4.9.65-3+deb9u2 (2018-01-04)
/ apache 2.4.25 --> 2.4.29 / php 7.0.27 / 10.1.26-MariaDB / mysqlnd 5.0.12
/ phpadmin 4.6.6deb4 / Redis server v=3.2.6 / HTTP2 /


TXT file in NXT13.0.0

This is a simple .txt with unicode ( in order to keep linux formating commande line )

And this is another .txt without unicode