Using MPD218 MIDI as DAW Control board - Can't assign pads to actions any more

[mub]

I use my Akai MPD218 MIDI device for drums and stuff in other apps but in Reaper I use it as a control board. When I first got it I was able to assign a load of actions shortcuts to the button pads, and control knobs to sliders. I even have a few scripted actions assigned. It has been really useful.

Recently I wanted to change some buttons but found I can't. Here is what happens.

Open Actions list, Select the Action to assign a button to, Click the Add button. At this point the expected window appears, but it is continuously detecting the control knobs. When I press a pad button you see it detected but instantly detect a control knob again.

I don't have any problems with the buttons / controls currently assigned and the control knobs don't interfere like at any other time.

I searched this forum (and googled of course) and not found a relatable answer.

Anyone able to help?

[TonE]

Are you playing any music, just stop any playback. So only your controllers work during mapping, one by one.

[mub]

Originally Posted by TonE

Are you playing any music, just stop any playback. So only your controllers work during mapping, one by one.

Nope no music play in Reaper, but I just tried closing the current profect so there are no tracks. The problem continues.

I had another go just now and found if you tap just right it will hold onto the selected pad, but it is not consistent.