# S3: Impossibile ottimizzare l'immagine: nessuna immagine definita **URL:** https://meta.discourse.org/t/s3-failed-to-optimize-image-no-images-defined/118968 **Category:** Bug **Created:** [29 Maggio 2019, 9:20am UTC](https://meta.discourse.org/t/s3-failed-to-optimize-image-no-images-defined/118968 "2019-05-29T09:20:11Z") **Posts on this page:** 1 **Showing post:** 4
### Author: ![jomaxro](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/jomaxro/32/126216_2.png) [@jomaxro](https://meta.discourse.org/u/jomaxro) #### Post date: [29 Maggio 2019, 10:16pm UTC](https://meta.discourse.org/t/s3-failed-to-optimize-image-no-images-defined/118968/4 "2019-05-29T22:16:40Z")
It is not possible to roll back versions. If you want to track a branch other than `tests-passed`, you can, but we generally do not recommend it. See [Which branch of Discourse is used internally?](https://meta.discourse.org/t/which-branch-of-discourse-is-used-internally/75181) for discussion on Discourse release branches. A note on stable, it is only “stable” in that we do not update it very often. While we make every attempt to release bug free software, we don’t guarantee stable to be bug free. Think of stable more as “I know what bugs I have and I’m stuck with them” vs tests-passed which has “unknown bugs appear, but get fixed quickly”. --- _[View the full topic](https://meta.discourse.org/t/s3-failed-to-optimize-image-no-images-defined/118968)._