Midi problem only with Launchkey Mini – please help :(

Hello!

I am using for my projects a keyboard, Novation's Launchkey Mini MK3, which I recently updated to version 1.1.
Since the update, I encountered a lot of trouble with the MIDI messages sent over USB. I am using [midiin] object alone in my project, but all the things described here happen also when I monitor the midi messages formatted by [midiparse].
(EDIT: this is how I test it:

)

1) There is an impassable problem with Midi note messages. They are completely out of sync; random notes stay, several note off messages are sent together after a delay etc.
2) When arpeggiator is turned on, it outputs gibberish, mostly note-off (144 n 0) messages, from time to time a note will be hold and stuck. This behaviour is irrespective to the arp's tempo.

I have no idea where is the problem. I did a lot of testing:
– with other software (Ableton Lite), the same Launchkey Mini works effortlessly and without a flaw. It also works with midi cable put directly to the synths. Only together with Max it goes crazy.
– my other midi keyboards in Max MSP are working well. Timing of fast arp in my Akai MPK mini is absolutely tight.

I believe this started to happen after the update to the 1.1 version of the Launchkey. The device audibly "hisses" a littlebit louder when turned on. Before I didn't noticed any trouble when working with Max MSP.

I re-installed the update but that didn't help. I am on Mac.

Do you have any suggestions, what might be going wrong here that this issue occurs? It is only problem with Launchkey and MaxMSP working together, other combinations of the software and gear works well... Thank you!