Minor bug - Spiking in time delay dial in app

I use the Volumio app on my Ipad pro 12.9" 2017 version.
And for the last months I am seeing these spikes appear in the app, and only in the app.
They do not appear on the screen I have connected to the raspberry, nor on the pc browser app.
These spikes only appear at the end part, last 25%, of the song no matter the lenght.
See below gif.
http://www.chocalive.nl/photoalbum/audio/volumio/ezgif.com-resize.gif

Prerequisites

Volumio Information

Volumio Version:
Hardware:
DAC:

Debug Log

Steps to Reproduce

  1. Update app to latest version
  2. closed app, and restart
  3. shutdown Ipad, and restart
  4. delete App, and redownload and install

Additional Information