changing sys password not possible after July 2021 RU installed on 19c db

Hello,

Has anyone encountered the issue of not being able to change the password for sys user after installing the July 2021 RU on 19c database?

when trying to change the password the connection is dropped

SQL> alter user sys identified by RCYZyd9IdjkdUIKm6964T9K9__1 ;

alter user sys identified by RCYZyd9IdjkdUIKm6964T9K9__1

                           *

ERROR at line 1:

ORA-03113: end-of-file on communication channel

Process ID: 12414

Session ID: 138 Serial number: 35760

in the alert log i have :

Exception [type: SIGSEGV, Address not mapped to object] [ADDR:0x1C] [PC:0x6F3861C, __intel_ssse3_rep_memcpy()+9660] [flags: 0x0, count: 1]

Errors in file /oracle/diag/rdbms/test19c/TEST19C/trace/TEST19C_ora_12414.trc (incident=34102):