I have a working KalturaCE 4 installation running with a locally installed Red5 back end for capturing streaming video from a web cam.

The RMTP protocol works in the Kaltura control panel when previewing a clip that has been added through the Drupal module, but the same video gets a "Media not found" error on the Drupal site.

After some experimenting, I've discovered that removing this line from the object tag fixes the problem:

<param value="&amp;{FLAVOR}" name="flashVars">