Decrypt9WIP CTRNAND partition disappeared after CTRTransfer

hi d0k3，the Decrypt9WIP is a very powerful and useful tools. it help me a lot. yesterday i met a strange issue，i dont know if it's a random issue，and hope you can give me some suggestion，THX.

this is a new3ds console，ver 2.1J have done B9，there is no nand backup，so i do the 9.2J ctrtransfer，some fail message after transfer done. i remember there is a SecureInfo_A file missed fail message.

when i reboot the console，only black screen... when i press SELECT or START and power on，it can enter LUMA setting and chainloader. when i enter gm9，i suddenly find out the CTRNAND partition disappeared...lol，and can't do transfer again...