Hello,
We have checked the page editing process in Safari and did not face any issues https://gyazo.com/0c73e44ce3c6fe3201a1fee5e5bbe614 and any problem with logo size https://gyazo.com/5987b58c8cfe57366a5104a499b5e0f8
Maybe it’s your local PC problems. Can you try to edit page etc on other PC using Safari? Maybe you have some browser extensions that caused this issue for you.
Regards
