I tried up sequences of up to 10 buttons with up to 5 repetitions and then 11 buttons with no repetitions.
1ECA8E89AD2DC1D6 = TUXSUXCUX
A75CA25CF4498F87 = TDTRUTDTRU
8FE0C6AA7CE60CEC = RLRLSLRRLRLSLR
B343B58CF0B72493 = SSSCCSC
E0B20BEDFA0AC685 = RCDXLSUTDX
EFCC5A6FD62EC6D8 = no solution found
Curious to know what they do!