WARN com.ubooquity.b.c - Could not read document metadata for file: CANNOTREAD.cbr - IllegalArgumentException: File could not be opened

Hello,

I have several files which cannot be read by Ubooquity and the cover is not created.

I have the following log : WARN com.ubooquity.b.c - Could not read document metadata for file: CANNOTREAD.cbr - IllegalArgumentException: File could not be opened

I do not understand since the rights are the same on a file which is correctly read and a file where ubooquity is blocked to open it. (cf. those ls -lrt results) :

-rw-rw-rw- 1 admin administrators 240041475 2024-11-20 23:46 CANNOTREAD.cbr
-rw-rw-rw- 1 admin administrators 63149432 2024-11-20 23:45 CANREAD.cbr

Any idea what could make a fil not open-able ?