New Favorites delated

Hy,
I’m french, so I will try to be as clear as possible
My problem happens when I add a new website / page in my Favorite Bar
In fact, in almost of cases, the website disappears at the next lauch of Brave.
I have no idea of what could the issue. In fact, I’m connected to Internet.
Thank for people who will come up with a solution,
Good day,
Fouk

@Fouk,
Are you referring to the favorites (bookmarks) bar that appears at the top of your browser?

Yes it is, this is this bookmarks

@Fouk,
So you’re saying that relaunching the browser deletes your bookmarks? If so, is it only the bookmarks on the toolbar or are all bookmarks deleted? That is, when you go to Menu --> Bookmarks --> Bookmarks manager, no bookmarks appear here?

Like I said previously :
when I add a new website / page in my Favorite Bar
In fact, in almost of cases, the website disappears at the next lauch of Brave.

@Fouk,
Can you tell me if you have Sync enabled at this time? Additionally, do you have any extensions installed in the browser at this time? If so, which ones?