I tried to rearrange the position of the toolbars, but after restarting Writer, these changes are lost.
Thank you for reporting the bug. To be certain the reported issue is not related to corruption in the user profile, could you please reset your Libreoffice profile ( https://wiki.documentfoundation.org/UserProfile ) and re-test? I have set the bug's status to 'NEEDINFO'. Please change it back to 'UNCONFIRMED' if the issue is still present