Send a screen shot of both HUDs and a copy of your show file....

Check that you have not set the sync ID of layer 2, to the same as layer 1 on the HUD

If the content is identical on all 3 layers, then use 'uselayer' for layer 2 on the same server - not sync ID.

If you are using 3 different bits of content - check that they are all exactly the same length. (and stick with sync ID)

Are you using a 'once' playmode as opposed to a 'loop' - check your programming and make sure that it is not playing in the previous cue, before your cue goes live - use 'onceFW>0' mode instead.

Hope this helps

S