You create a lightshow in Show Buddy which triggers multiple masked presets simultaneously, to build up full looks. When you export this lightshow to a MIDI file and import it into your MIDI sequencer, some of the simultaneous presets do not trigger correctly in the MIDI plugin.
Try increasing the “Minimum gap between cues” value in the Show Buddy Preferences window, and re-export your MIDI file.
Show Buddy can trigger multiple presets across multiple banks simultaneously without any problems. But this is not possible in the VST/AU plug-in, due to a limitation in MIDI – if the plugin receives 3 notes on ch 15 (bank changes) and 3 notes on ch 16 (preset changes) simultaneously, it has no way of telling which bank change belongs to which preset. Bank/preset changes in a MIDI track must be staggered by a few milliseconds to get round this problem.
The Show Buddy export function will stagger simultaneous bank/preset changes automatically for you, but you may need to play with the “Minimum gap between cues” value to find a reliable setting which works with your particular host & setup.