Downloads being saved to phone instead of external SD card. Why?

wrinklyfruit

Prominent
Jan 23, 2018
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I have the Audible app set to save any books that I download to my device (Samsung) to my external sd card - not to my phones memory. And yet....I just downloaded another book and noticed that the remaining amount of free space on my phone has been reduced by exact amount of megabytes that the book that I just downloaded is. It also got saved to my SD card though. Why is this happening and can it be fixed?