Another thing we can recommend is checking if you observe the same under a different network. If it works with another connection, it's best to contact the service provider of the original network for more information.
In case you still can't see the podcasts, try logging in with a different Spotify account on your device to check if this might be an account-related issue. If it works with another account, you can follow the steps in this Spotify Answer next.
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“Music is the wine that fills the cup of silence.” - Robert Fripp