Accent Max device - velocity settting bug

The last four buttons of the top row (velocity settings) of the Accent sequencer aren't working correctly.

Using the 0 based counting as they're referred to in the Javascript code, it's buttons 12 13 14 15

13 and 15 on the top row turn the same color blue as the leading note of each bottom row group of 4 buttons

12 and 14 briefly flash when pressed in the right color but turn off immediately

The LCD colors are changed to show the correct state of the sequencer when other buttons are pressed, such as the 4x4 matrix, changing the preset, changing back, exiting and re-entering the mod, etc

I took a look at the Max device to see what's going on and was focusing on simple_binary.js and when and and how refresh_keys() gets called but didn't see anything obvious.

My CNTRLR is the silver-shaft revision, running firmware v111, Live version is 9.1.2 64-bit/Max 6.1 on Windows 7.

Thanks!