Well, the title says it, my BSP sends two values, sequentially, for each detente in relative mode. The behaviour is identical across all relative modes 1-3. Attached are screen grabs demonstrating the issue in Max and MainStage, with the BSP as well as the correct, single value behaviour from the BS. Every combination of acceleration, relative mode, and USB/MIDI gives the same effect. My firmware is 1.3.0.23.
I find it hard to believe this is intended behaviour, as it makes midi learn impossible, and causes all sorts of problems in custom midi parsing patches. Is this a know issue? Is it fixable?