Oslo top bar navigation drop down not working on sub-sites?

Question

I can only get the drop-down function of the top navigation bar for Oslo to work on my root site but none of the subsites that I have made. Is this intentional?

What can I do to get drop-down navigation to work on the subsites?

Answer 1

Do you mean the drop-down function of the top navigation bar that is shown below?

If yes, so you should be aware of this functionality is not working with Oslo master page in Publishing Site or Team Site with SharePoint Server Publishing feature enabled!

Note: you can only find auto generated drop-down for the list and recent as shown below, but you can't create your own drop-down!

Meanwhile, It's working properly in Team site that hasn't ever had publishing features enabled by configuring

• New Heading in the Quick Lunch setting below Look and Feel in Site Setting.

Regarding Why would this function not work when you have enabled Sharepoint Server Publishing?

It's by design, once you have enabled the Publishing feature the Quick Lunch is removed. and in this case,

• You can use Seattle Master Page instead as a workaround solution!!
• Or use a Team site that hasn't ever had publishing features enabled.

Note: If you need to make sure that try to create a Team site and check it.