[ps67]

There was a discussion about that: if Your dictionary files are flagged as read only in file system they won't update wen You sync (this is the attended behavior, it does not always works). May be Your case.

See

Originally Posted by geek1011

I just noticed another new feature I missed earlier.

You can now mark a dicthtml file as read-only to prevent Nickel syncing it (see https://github.com/geek1011/kobopatc...ment-596228361).

And also see some following post. The discussion was born because of an old patch that was discontinued because it had become useless.