Why am I unable to update all of my apps within iTunes?

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I cannot update all apps within itunes

I have about 100 apps within itunes (12.3.3.17, Windows 64 bit) that need to be updated (most have already been updated via the App Store app (IOS 9.3.1)). However, one of the apps in the list is "Podcast".

If I try to use "Update all", Itunes complains "Podcasts is only available on iOS", and itunes stops trying to update anything.

There are only "Update this app" and "Update all apps" (no "update selected apps") so I can't select-all then deselect Podcasts.

Podcasts does not require updating on the device (Ipad Air II). It's not practical to update the apps 1 by 1 (and it wouldn't solve the problem). Ideas?