Custom Logo issue since WP 6.6

[Pierronimo]

Hi everyone.

I'm having an issue since WP 6.6, and the has_custom_logo() and the_custom_logo() functions.

I have installed a fresh WP, with multisite, network-media-library as mu-plugin and Twenty Twenty-Four as theme.
the_custom_logo() works well on the main site, but doesn't work on the sub sites.

When I get back to WP 6.5.5, everything works well, on main and sub sites.

Anyone has the same issue ?
Any idea about how to correct it ?

Kind regards