But when opening my modal with a classic button is working. There is an example :

export const ContextMenuWatchlistAction = ({
    children,
    watchlistItem,
}: {
    children: React.ReactNode,
    watchlistItem: UserWatchlist,
}) => {
    const { openModal } = useModal();
    const items = [
        [
            {
                icon: Icons.comment,
                onClick: () => openModal(ModalWatchlistComment, { watchlistItem }),
                label: watchlistItem?.comment ? 'Modifier le commentaire' : 'Ajouter un commentaire',
            }
        ]
    ];
    if (!watchlistItem) return children;
    return (
        <ContextMenu>
            <ContextMenuTrigger>
                {children}
            </ContextMenuTrigger>
            <ContextMenuContent>
                {items.map((group, fragindex) => (
                    <Fragment key={fragindex}>
                        {group.map((item, index) => (
                            <ContextMenuItem
                                key={index}
                                className="gap-2"
                                onClick={item.onClick}
                            >
                                <item.icon className="h-4 w-4"/>
                                {item.label}
                            </ContextMenuItem>
                        ))}
                        {fragindex < items.length - 1 && <ContextMenuSeparator />}
                    </Fragment>
                ))}
            </ContextMenuContent>
        </ContextMenu>
    )
}

And there is the error :

Blocked aria-hidden on an element because its descendant retained focus. The focus must not be hidden from assistive technology users. Avoid using aria-hidden on a focused element or its ancestor. Consider using the inert attribute instead, which will also prevent focus. For more details, see the aria-hidden section of the WAI-ARIA specification at https://w3c.github.io/aria/#aria-hidden.
Element with focus: div
Ancestor with aria-hidden: 

you can either ignore the errors as look like accessibility errors. Or if you want to fix them, use the onClick event on your drop down button and call the event.preventDefault() method. The button should now stay open and the modal should open as well

I cannot ignore because when append I cnanot click on anything else without refreshing the page

So is the „preventDefault()“ the solution?

No I didnt change anything (ive already tri preventDefault and wasnt working), only update radix...