Please report after seeing FAQ.

Please write the contents of the bug in detail referring to the writing example below and send it to the following e-mail address.

Notes
Support of OS3 Ver.1.52 and OS128XL Ver.1.81 and OS128SP was ended.
We can not fix bugs that we can not reproduce.

Examples
1. OS2XL
2. Ver.3.xx
3. MPC is turned on.
4. Load project
5. Go to Song mode.
6. Press Full Level while playing a song.
7. Current sequence starts looping.

Please send to the following address.
jjsoft-mpc1000bg@memoad.jp