The BrailleSense 6 is not behaving normally. You can possily fix using a reset.
Note: if at all possible try to do a back up before using this reset to avoid lengthy setup time afterwards.
Please use the illustration below for reference.
Dot, 7, 3, 2, 1, 4, 5, 6, 8
F1, F2, CRTL, spacebar, Alt, F3, F4
Left up/down scroll keys
Right up/down scroll keys