Paweł Świątkowski

@simon-dedeo just replace `gem 'gsl'` in your Gemfile with ``` gem 'gsl', git: 'https://github.com/katafrakt/rb-gsl.git', branch: 'ruby3-compatibility' ```

It seems that your images are not served statically (otherwise those requests would not hit Rails routing at all). Could you post relevant config of your web server (apache, nginx...

And you don't happen to have `config.serve_static_files` set to `false` in your `development.rb`? Are you sure that files in question really exist? (Note that you have `%3F` instead of `?`...

Your issue seems to be the same as https://github.com/jrgifford/delayed_paperclip/issues/126. Try locking paperclip at 4.2.0 until delayed_paperclip gets patched.

Hi! I wasn't able to reproduce this kind of behaviour with: - paperclip 4.2.1 - delayed_paperclip 2.9.0 - rails 4.2.0.rc3 - ruby 2.1.5 What was your setup?