iTunes 12.4.1 Managing Podcasts on iPod Classic

Trying to manage my podcasts on my iPod Classic 160GB with my Mac Mini.

Connect my iPod no issues.

Click on Podcasts to see the summary, no issue. I get the list of Podcasts in my iTunes.

Try and scroll down, it won't go.

Select one of the podcasts and use the down arrow to scroll down and some podcasts show the available shows others don't.

Have now restored my iPod and restarted my Mac Mini.

Doesn't fix it.

This really seems like an iTunes issue. Any ideas?