Production Assets do not appear

Hi, there,

I have a rails application and i recently upgraded it to 5.1.4 rails version.

In development environment, the application works fine. However, when I deployed, the application still works, however, some images do no appear, even so they were precompiled, and apear in the puplic/assets folder with a fingerprint and in the .sprockets-manifest.

Any thoughts about what happened and how can be solved?

Thank you in advance,

João Bordalo