Codebreaker Xploder: saving issues with codes

[VirtuaShenmue]

Hello

I tried using Codebreaker - Xploder to save codes.
While saving it never seems to finish, and the VMU saving icon never turn off even after launching a game (in fact you cannot use the VMU afterward, like if it's busy, you need to remove and insert it again).

If you return to the BIOS, the VMU disappear from the bios manager, and reappear only if you disconnect and reconnect the VMU again.
The codebreaker file is there thought, a 2 block save with no image icon, it seems to work too, but it's a strange behavior.

The VMU is also empty, so it's not a space issue.
Any tips? Thanks

[megavolt85]

if you are using a third party VMU, then this behavior happens
try with another VMU

[VirtuaShenmue]

it's an official Sega VMU.
I tried also with other official VMU that has already data on, and it's the same