I got the free M1 Le when I bought the nanopad2 controller, which I use for switching presets by hand while jamming.
The problem: I had around 10 sounds of the M1 Le saved in MG2. When I switched directly from one to another MG2 showed “no instrument”. So I always had to switch to another synth in between and then go to the second M1 patch.
The solution: I just copied the M1-dll 10 times, named them according to the patches (just not to mix them up) and loaded each sound with the correspinding “instrument” (=dll). So it is possible now to switch from one preset of the M1 Le to another without detour.
The sounds of the M1 Le are great by the way.