C_SignInit() Failed with CKR_USER_NOT_LOGGED_IN with multiple sessions open on the same token

[xiazhvera]

My application failed on C_SignInit() with CKR_USER_NOT_LOGGED_IN when I have multiple sessions opened.

I created two sessions with the sample token and log them in. I did a C_SignInit
Then I closed session 1 and tried to call C_SignInit on session 2. And I got error CKR_USER_NOT_LOGGED_IN.

Meanwhile, the C_SignInit() works if I close the session 1 before I start session 2.

The Application Log's here:

[DEBUG] [2023-09-14T05:22:47Z] [0000ffff953bd020] [pkcs11] - id=0xaaaad96b8390 session=72057594037927937: Session opened on slot 1
[DEBUG] [2023-09-14T05:22:48Z] [0000ffff953bd020] [pkcs11] - id=0xaaaad96b8390 session=72057594037927937: User logged in
// Session one did `C_SignInit` and `C_Sign`, not log here as it succeed...
// Opened the second session
[DEBUG] [2023-09-14T05:22:49Z] [0000ffff953bd020] [pkcs11] - id=0xaaaad96b8390 session=72057594037927938: Session opened on slot 1
// Session 2 login "failed" because session 1 already login to the same token. The application would ignore the error.
[DEBUG] [2023-09-14T05:22:49Z] [0000ffff953bd020] [pkcs11] - id=0xaaaad96b8390 session=72057594037927938: User was already logged in
// Note the session id, the application is trying to close session 1.
[DEBUG] [2023-09-14T05:22:49Z] [0000ffff90edf120] [pkcs11] - id=0xaaaad96b8390 session=72057594037927937: Session closed
[pkcs11] - id=0xaaaad96b8390 session=72057594037927938: C_SignInit() failed. PKCS#11 error: CKR_USER_NOT_LOGGED_IN (0x00000101).

Looking into the library, it seems that C_SignInit failed at auth_min_ro_user https://github.com/tpm2-software/tpm2-pkcs11/blob/1b3aab90ee5f7debbce82c7e229aa2950a9e8f0d/src/pkcs11.c#L265C21-L265C37.
Would there be more context related?

Any information would help. Thanks in advance.