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Samsung Gallery App Missing Thumbnails / Slow to Load After One UI Update

(Topic created on: yesterday)
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Catzone
First Poster
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Hi everyone,

I’ve noticed a frustrating issue after the most recent One UI update on my Galaxy S21 (UK model). The Samsung Gallery app has started loading thumbnails very slowly, and in some folders (especially older ones), thumbnails don't appear at all unless I open each image manually.

I’ve already tried:

  • Clearing the cache and data for the Gallery app

  • Restarting my phone

  • Checking SD card for errors (though most images are on internal storage)

  • Updating all apps via Galaxy Store and Play Store

This issue is particularly annoying because I use my phone for both personal and content-related work. I also run a cat care blog (Cat Cuddle Zone) where I organize a lot of pet images — so having a fully responsive Gallery is important for me.

Is anyone else experiencing this? Could it be a bug with the latest UI/firmware version?
Any help or workaround would be really appreciated!

Thanks in advance.


Let me know if you want to tai

catcuddlezone
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1 REPLY 1
Tourbillon De La Vie
Samsung Members Star ★
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Try wiping phone partition cache
• Power off the device.
• a USB-C cable to a PC or another device.
• Hold Volume Up + Side Button until Recovery Menu appears.
• Select Wipe cache partition/ Confirm Reboot system.