I have also facing same issues. After update 2.9.0 No menu image is displayed.

Same here – all menu images have disappeared after updating to version 2.9.0.
I had to revert.

🙁 Please, respond ASAP…

Still no images…

Ok, I’m sure that’s related to one particular change, I’ve started to use nav_menu_item_title filter instead of walker_nav_menu_start_el to make it compatible with more themes. It was introduced in 4.4 and the main difference is in first case I’ve replaced the whole menu item and it lead to problems with themes with have custom code for menus, but new filter probably not implemented well in many themes. I’m going add fallback behaviour for such case and can anyone send me your theme to email or link where I can download it?

Thanx guys, I’ve got few themes and found that many theme developers are not updating their themes to keep new wordpress core version, but in this case I’m going to add fallback behaviour and support such case, but if your theme adding some special classes/styles to menu item, it will not work and it can be fixed only manually per each site.