# Thumbnail not working, but it seems they did on initial run

**URL:** <https://help.nextcloud.com/t/thumbnail-not-working-but-it-seems-they-did-on-initial-run/229858>\
**Category:** ℹ️ Support\
**Tags:** app\_api, preview, nc31, collabora-built-in\
**Created:** [August 5, 2025, 2:55pm UTC](https://help.nextcloud.com/t/thumbnail-not-working-but-it-seems-they-did-on-initial-run/229858 "2025-08-05T14:55:45Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![wwe](https://help.nextcloud.com/user_avatar/help.nextcloud.com/wwe/32/72963_2.png) [@wwe](https://help.nextcloud.com/u/wwe)\
**Post date:** [August 6, 2025, 1:47pm UTC](https://help.nextcloud.com/t/thumbnail-not-working-but-it-seems-they-did-on-initial-run/229858/3 "2025-08-06T13:47:48Z")

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maybe [HowTo: Change / Move data directory after installation](https://help.nextcloud.com/t/howto-change-move-data-directory-after-installation/17170) helps

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