"A TLOBLocator instance requires OCI8 mode, but OCI7 mode is used" on query using Oracle 21c

Hi,
using PLSQL Developer 7.1.5.1398 appears the error message "A TLOBLocator instance requires OCI8 mode, but OCI7 mode is used" when I query a table with a CLOB column in a 21c database.
I try to check "Force OCI7 mode on OCI8" option but then I can't connect. The error: "invalid login or password" appears.
I have the same wrong behaviour with a trial version of PLSQL Developer version 12.0.7.1837 - 64bit.
Until the 19c Database I made querys without problemas and I can modify the values using the rowid, on the query result table records itself.

Do you have a solution for this?

DB: Oracle Database 21c Express Edition Release 21.0.0.0.0 - Production
instantclient:
- instantclient-basic-windows.x64-21.13.0.0.0dbru used with PLSQL Developer version 12.0.7.1837 - 64bit
- instantclient-basic-nt-21.12.0.0.0dbru used with PLSQL Developer version 7.1.5.1398 - 32bit

Additional Info from PLSQL Developer version 7.1.5.1398 - 32bit
PL/SQL Developer
Version 7.1.5.1398
01.48194 - 5 user license
Windows Vista (64-bit) 6.2 Build 9200

Parameters
C:\Program Files (x86)\PLSQL Developer\plsqldev.exe

Preferences
Session mode: Multi
OCI Library: C:\network\instantclient_21_12x32\oci.dll
Use OCI7: False

DLLs
c:\network\instantclient_21_12x32\oci.dll

TNS File
c:\network\tnsnames.ora

Using
Home:
DLL: C:\network\instantclient_21_12x32\oci.dll
OCI: version 9.2
Oracle Database 21c Standard Edition 2 Release 21.0.0.0.0

Additional Info from PLSQL Developer version 12.0.7.1837 (64 bit)
PL/SQL Developer
Version 12.0.7.1837 (64 bit)
Windows 10 Build 19045

Preferences
Session mode: Multi
OCI Library: C:\network\instantclient_21_13x64\oci.dll
Use OCI7: False
Allow Multiple Connections: True

Plug-Ins
*Active Query Builder (C:\Program Files\PLSQL Developer 12\PlugIns\ActiveQueryBuilder.dll)
*PL/SQL Documentation (plsqldoc) (C:\Program Files\PLSQL Developer 12\PlugIns\plsqldoc.dll)
(* is Active)

DLLs
C:\app\product\18.0.0\dbhomeXE\bin\oci.dll

TNS File
c:\network\tnsnames.ora

Using
Home: OraDB18Home1
DLL: C:\network\instantclient_21_13x64\oci.dll
OCI: version 12.1 (21.13.0.0.0)
 
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