Spotify broke my Android 'Available Storage' calculation

[voice_of_reason]

Spotify reported that it was using nearly 3Gb of internal storage. I cleared 'Cache', cleared 'Data' and then uninstalled Spotify.

My internal stoarge hasn't increased at all. In the Android 'Storage & USB' settings option, it tells me...

6.58Gb used of 10.89Gb

But the breakdown underneath shows:

2.86Gb - used by Apps
0.93Gb - used by Cached Data

... and everything else is negligible. So how does that add up to 6.58Gb? If you do the maths, it is *still* counting the 3Gb of storage that Spotify was using. I've checked under 'Android --> Data' and there is no Spotify folder there any more.

Is it possible there are some files somewhere else that haven't been removed?