Hey.
Can you make sure each boards have been correctly updated, by proceeding as below?
Check the board version: Hold PLAY + the buttons in red to display the concerned board version.
(On the first check, you will need to press it twice to display the board revision.)
The revisions should be the following:
Button Module Version
Patterns : Voice : 2.0.0.31
SEQ Length : Main Board : 2.0.0.102
Straight Note : Analog : 2.0.0.103
Triple Note : Filter : 2.0.0.103
Dotted Note : Matrix : 2.0.0.103
1/4 : Audio Mod : 2.0.0.103
1/8 : LFO : 2.0.0.103
1/16 : KBD Wheels : 2.0.0.103
1/32 : FX's : 2.0.0.103
If one of your MatrixBrute boards is not up to date, you can update it manually.
To do that, repeat the operation, but instead of holding the Play button: Hold Record + the corresponding board button.
The MatrixBrute should then freeze for several seconds, and display FWOK at the end of the process.
I stay at your disposal if you need any further informations/help.
Best Regards.