Hi I have same problem MacOS Big Sur beta 10 (20A5395g) smbfs.kext driver already loaded. error report that: kernel smb2sessionmaxread: Limit max read quantum size to maxmsgsize <1048576> Any workaround?, thanks.

@Gualtier Malde the problem not resolved in the latest version 20B29.

Hi @Claude31  Sorry I've confused you. Example in Safari menu bar: open menu Safari -> Bookmarks -> Favorites focus mouse on submenu Item in Favorites, press ESC , you will see all menu closed, but I want only close Favorites submenu.