In general, I try to avoid Apple products when I can, but I do use and enjoy and iPod Nano for podcasts.
With the recent update to 11.4 I noticed that my podcasts were not refreshing, either on a schedule or on-demand. I tried restarting iTunes, unplugging the iPod, restarting the computer – nothing. Until I looked in the settings.
Look at this setting:
(Windows version: Edit | Preferences | Store)
Uncheck the highlighted setting. I’m not sure how this feature is supposed to work, but once disabled, podcasts started refreshing correctly again.