Album art doesn't scale after hiding queue, ref#41

Perform the following steps:

  1. switch on Arcam SA30 version 1.21 is used
  2. start Arcam Music Life iOS app, build 3004 is used
  3. select a track and add it to queue
  4. build up a queue of tracks from different albums by repeating last step for different albums, refer to video position 0:02 for an example queue
  5. select a track from the queue (music starts playing=ok)
  6. click on the track currently playing (screen with album art appears=ok)
  7. click on queue
  8. click on queue

Actual result
Between step 7 and 8 the album art is scaled. Repeat these steps and sometimes album art from other albums can be seen. Refer to video.

Expected result
Album art of the current playing track is scaled only.