Can’t get marks to appear with axis labels

I have a chart with positive and negative Y values. When I position the X-axis labels using Near axis or Near axis (other side), the interval marks appear as expected.

However, when I position the X-axis labels using the settings Outside end or Outside start, the marks do not appear.

An example file is attached and a screenshot of the Positioning page follows.

I would appreciate any suggestions for making the marks appear.image description(/upfiles/15640106786357864.png)

Check if setting axis line to some value other than none helps.

Thank you, Mike. That solved it. Once again, you have demonstrated your ability to answer so many different types of questions so readily and clearly.
By the way, your comment is really an answer. I would change it if I could.

For the record:

The solution is setting axis line to some value other than none.