Browser changes last word in synch phrases

Why does the browser change the last word in the sync phrase every time? I made a backup of my phrase and later tried to add another PC, however the last word was always changed. So if your only device breaks and you later try to sync to a new one, the phrase is useless!

The last word changes because of security reasons. You can always view the last word cause it’s same for every one each day (The last word changes every day). You can view it by trying to create a new sync chain, check the last word then enter it for the code you have from old device