Another failed proof and another (useless?) syslog. I tried using powershell and downloading again the file but, of course nothing.
But IMHO the issue is not in dictutil but in the fact that in my Kobo the read-only flag has no effect. Of course You are more experienced, but I think so because it did not work even the manual read-only flagging both with Linux and Windows10.
Or may be the file? I downloaded from here
https://www.mobileread.com/forums/sh...d.php?t=196931
and the dictionary is the Italian dictionary. Or may be the Aura One firmware? I am on the last firmware.
Thank You again.

Ok we aren't still in 2022...