Dynamic Wallpaper keeps resetting to default overnight on Galaxy S24 Ultra

[Malenia]

Dear Samsung Team, I’m experiencing an issue with the Dynamic Wallpaper feature on my Galaxy S24 Ultra. Every night, the wallpaper I’ve selected resets to the default dynamic wallpaper by morning. I’ve already tried restarting the phone, clearing the wallpaper app cache, and reapplying the wallpaper, but the issue continues to occur. Please look into this issue — it seems to happen automatically overnight, possibly after the phone is idle or connected to the charger. 

Device: Galaxy S24 Ultra 

Software version: One UI 8 / Android 16

[TimonN]

This is interesting.
Can you explain steps to recreate this issue ? I can check mine as well.

[nmitev]

I have the same problem. I even tried resetting the phone completely, disabling routines and modes, removing LockStar, but it still happens. It is not related to charging, as it happens even when I'm not charging my phone overnight.
As far as I remember, this started to manifest in the last few weeks for me, before that, it was fine. I'm not sure, but if I remember correctly, it happened just after the second OneUI 8 update 

Steps to reproduce:
S24 Ultra latest OneUI, everything up to date -> select dynamic wallpaper -> go to sleep, and in the morning it will change back to the default one

Edit: I just found this article, it seems it should be fixed with the next update - https://www.sammyfans.com/2025/10/29/samsung-is-fixing-dynamic-wallpaper-reset-issue/

[Malenia]

Exactly thats the issues 😂 lets hope samsung fixes this issue ASAP.

[Samsung_specialist]

We're sorry to hear about your experience.

To assist you further, follow these steps:
1. Settings > Software update > Download and install > Download > Install now.
2. Disable Battery Optimization for Wallpaper Services :
Go to Settings > Battery and device care > Battery > Background usage limits > Never sleeping apps, and add Wallpaper services or the app managing your dynamic wallpaper.
3. Reset Wallpaper Services Settings :
If you're using Samsung Dynamic Lock Screen or Modes & Routines, try resetting their settings.
4. Run a diagnosis test via Member app :
Download Samsung member app from Galaxy store then open the app => diagnosis => Phone diagnosis.

If the issue persists, please visit a service center for further assistance. You can locate your nearest service center using the link below: https://www.samsung.com/ae/support/service-center/.