Tried that.....no difference. The midi channel does not seem to impact in the plugin.....I mean, even if you select different channels, say, 1 and 16, they will both act on the same instance of the plugin even if you have loaded it in twice.

You can see this if you look at the VST instrument list. There is only 1 occurance of the plugin showing there, indicating that any midi channel will all be using the same plugin at the same time.

Tiss sure a mystery..........for sure.