URLs show Page ID only for topics in SOME spaces

[Kimberly Onnen]

We have several Documentation spaces. All of our NEW topics in NEW spaces have the page ID appended to the end of the URL. 

For example, I just created a test space (and selected to create a Documentation space as always). The two sample topics also have the page ID at the end of the URL:

• https://xxx/ts/getting-started-80150614.html
• https://xxx/ts/making-a-template-80150615.html

Prior to this, the URLs would just be the topic title. 

• https://xxx/sched45/user-guide/overview

I also just created a new topic in an existing space SCHED45 and that topic does NOT have the numbers at the end. None of the topics in this space have the numbers.

• https://xxx/sched45/user-guide/test

Why would some spaces have the numbers in the URL and some don't?? I always select to create a Documentation space. Is there some other odd setting? I don't want the numbers at the end.

(Well, I guess it doesn't matter if I select to create a Document space. I just created a blank space and added some test topics and the URLs all end with numbers. I'm guessing these are the page IDs??)

We are on Atlassian Confluence 6.9.1 (Server).

[Kimberly Onnen]

No special characters are in the titles. We use Scroll Viewport.