Menu ordering not saved

This happened to me as well with a menu with 300 menu items. I disabled the content menu module and then I was able to save the hierarchy. I thought that was the fix, but now even with the content menu module disabled it is not saving the hierarchy unless I manually edit each node's menu item and set the parent. Maybe this is a core bug?

Would you eventually have other modules that are messing with the menu? What theme are you using? Does the problem happen with Seven or another admin theme?

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In my case I'm using the Seven theme. I also tried with the Shiny theme, but I had the same problem. I don't have any other menu related modules other than admin_menu.

I'm not sure, but this might be due to #1007746: Reordering fails with more than 100 items in a menu

Does someone have the issue with a small number of items in the menu?

I don't have this issue (merely following because if it proved to be an actual bug, I would want to know about it). My biggest menus are around ~50 items though, so that could be why I wasn't having the issue.

Can someone that is having the issue please test the latest patch available for D7 from #1007746-41: Reordering fails with more than 100 items in a menu and report if it fixes things for them?

I am having an issue with the menu items not saving on reaarange. I have 275 menu items. is there a fix for this is drupal 8. I tried to even disable this but it still didnt work for me.