reader_loop: bad jump: 8388608

While issuing rainbow help, it seems there are some strange two rows:

reader_loop: bad jump: 8388608
Aborting...

How to reproduce:

root@turris:~# rainbow help
Invalid operation: help
Turris leds manipulation.

Usage: /usr/bin/rainbow [OPTION].. <OPERATION>...

Options:
  -p INT  Set priority to given led setting (in default 50 is used)
  -n STR  Slot name ('default' used if not specified)
  -l      List all available LEDs by name
  -x      Run in debug mode
  -h      Print this help text and exit

Operations:
  reset       Reset rainbow state (wipe any runtime changes)
  brightness  Set upper limit on brightness of all leds
  all         Configure all available leds at once
  ledX        Where X is number (up to 12 on Omnia and 8 on 1.x)
  Configure specific led by name:
    wan lan-1 lan-2 lan-3 lan-4 lan-5 wlan power

Every operation has some additional arguments. You can list them by
passing -h option after specifying the operation.
reader_loop: bad jump: 8388608
Aborting...root@turris:~#