RB 10.5

1. I generated a piano midi track from one of the library tracks in RB
2. I then selected a plugin VST instrument to change the GM/Edirol piano patch
3. The new VST plugin (Edirol Orchestral) has 1 - 16 patches providing different virtual instruments.
4. I wanted to use patch 5, trumpets. Selection is done by changing the channel number in RB to 5.
5. When I press start the track jumps back to patch 2 - every time. I can change it back to 5 after the track starts playing, but, every time it starts from the begining it jumps to 2.

I have studded and tried changing the Event Log but there is no Control Code showing that could explain why this is happening. There is no MIDI data that I can see at the very start of the track that could cause the jump. Even after re-generating the jump remains.

What is happening and how can I ensure the correct patch is selected without jumping back to 2 every time it starts?

Thanks