I can confirm this on my end as well. Although as I mentioned, if I’m on the start-up form for the Material Design and I delete everything there, and re-add the column panel and links, I can get them side-by-side. This does not work if I start a blank form as David has shown.
start-up form (cleared components and began to add). This works.

opened a blank form, added components. This does not work.
