I’ve tried to find an answer for this and all I can see is frustrations and workarounds since there are no legit way to delete locally stored content on my iPad. I’ve tried to press the delete synced content and it said it did delete it, but it’s still there taking up 10GB.
Please make it possible to delete synced content properly without having to use workarounds. BTW, the workaround was to press the cancel button while it’s deleting the synced content, but I saw that only after I’ve deleted the synced content myself and now the button is not available longer even though all the episodes are still there and I can still play them.