I'm using B5 3.4 here.
While running the Earthforce Gauntlet, I found that the graphics for Engines 1 and 3 on the Hyperion cruisers seem to have been mixed up somehow. Here is a screenshot of me targetting Engine03.

Here is a screenshot of Engine03 after it is destroyed. Notice that it still appears operational even though it has been destroyed whereas Engine01 seems to have stopped.

But when targetted, Engine01 is clearly at 100%.

I'm not sure if this is supposed to be here or if it's supposed to go in Freespace Modding. But since it is specific to B5, I decided to post it here.