The Kerberos ticket ccache is named something like krb5cc_x0000000000000001
The ccache file krb5cc_x0000000000000001 is in the format krb5cc_x[PAG].
This is an AIX Process Authentication Group (PAG)-based Kerberos credential cache name where PAG is a 64-bit unique hexadecimal number generated from the operating system service. This is generally used when you want to have a credentials cache file that is unique to a process.
You will need to consult the documentation for your operating system or AIX support to disable / change this as this is beyond the scope of One Identity Technical Support.