Deleting Shows with Preview App

I have a 4 tuner Tablo and using a 4k Fire Stick to access it. I have noticed it takes forever to delete shows only when using the preview app. Regular app is fine, android app is fine as it the IOS app.

Any idea?

Deleting a single episode? Or deleting a whole show with say 40 recorded episodes?

Doesn’t matter. If I switch to the regular app after deleting a show in the preview app, it show’s it is deleted. Seems the preview app is caching the shows and not refreshing after a delete.