Have you ever tried to add new columns to a Summary Links Web part and got an unexpected result?  Well, this happened to one of the clients I was working with.

It’s a simple task. Right?

When the user changed the layout of the Summary Links Web part to five columns per group, instead of getting five columns across the Web part, the columns were stacked on top of each other.

SummaryLinksLayout

It made no difference when it was changed to any value greater than one, the columns continued to stack on top of each other.

SummaryLinksGroups

After some research, it turned out that it was related to the theme applied to the site.  In my opinion, this is very strange.  The site’s theme was changed back to an OOTB theme, and the columns behaved the way they are expected.

SummaryLinksGroups2

Happy SharePoint-ing!