I've just migrated a Drupal website from an old server to a new. Only the thumbnail filter is working; the others refuse to generate and provide a 404 error when accessing. I've looked at logs etc; everything looks fine (apart from access errors). Image libraries are installed and enabled, and no Drupal configuration was changed while moving. I've been trying different things for hours (changing permissions, setting up new test filters etc) but can't seem to solve it. Do you have any idea?
Creating new filters to test the sample image works fine.