Settings

After some time, working with my catalogs on the nas, there is no longer overwrites the settings I add to the photographs. Initially any changes remained imprinted on the catalog. How is it possible?

In fract now, after any working session on the catalog I am making a preventive backup. But this costs me time... Having the changes always overewritten I found it useful. And I dom't know why this change of settings takes place after some time. Before, everything worked correctly!!

Thank you