---
title: Troubleshooting
description: When the desktop picture does not change, or does not stay.
url: https://mpdreamz.github.io/undertone/troubleshooting
---

# Troubleshooting
**The picture does not change at all.** Check that Undertone is running (the half-filled circle in the menu bar) and
that **Pause** is off.
**I chose a picture in System Settings and it went away.** While Undertone runs, its picture wins; turn on **Pause** to
keep yours.
**It stops when I restart.** Turn on **Open at login** on the **General** page of **Settings…**.
**A space shows the old picture for a moment.** macOS lets an app set only the space on screen, so each space gets its
new picture when you first switch to it after a shuffle. See [Spaces](https://mpdreamz.github.io/undertone/desktop/spaces).
**There is no black strip with Hide the Notch on.** The strip is drawn only on displays with a notch.
**The lock screen does not move.** Lock screen motion plays only in the screen saver: check that Undertone is chosen in
System Settings › Screen Saver, and give it a few minutes after turning it on (or after a shuffle) to draw the movie.
Locking straight away shows the still lock screen.
**What is Undertone doing?** It logs to the unified log:
```sh
log stream --predicate 'subsystem == "io.github.mpdreamz.undertone"' --info
```