I can +1 this.
It started with FW 1.24
but since using the midi control center, hitting the "default values" button, sending that to the keyboard, and then fixing oddities from there, the lights no longer come on at random
I'd love to say everything works (As it does in NI synths and other VSTi) but in Analog Lab, i can't get P2 to move (works in all others)
Every other pad, fader, encoder works normal though.
With all the fighting this, i don't recall, did Analog Lab listen to Velocity and Aftertouch out of the box (with FW 1.18 in my case)?
I don't remember, but for me velocity and aftertouch only work in synths where i can assign them.
I wish Arturia provided us with a .kl49 file we could load in midi control center, send to our keylab49 and at least get it back to how it was shipped, as the sending a config to the keylab49 at least stopped the randomness, i just seem to have a few things off in the config.
I attached the config i am using to send to the keylab49 as a start over point, i progressed it from the default values, in this the knobs are relative so synths don't bounce around, pads are midi notes, faders are fixed so the FILTER-A does not move AMP-S (as the default values double assign the same CC)
Save yours before you try mine.
I'm sure everyone here knows more about midi than me i attached the file for "just in case", but this file allows me to keep my sanity, until a new firmware comes out that includes a reset.kl49 or something to avoid this randomness after flashing (for me since flashing)