Fluentbit filter with multiple systemd identifiers and log levels

Question

I am trying to filter the systemd logs using fluentbit with different log levels. The requirement is to exclude the log-level 7 for certain services while excluding log-level 4-7 for another service. My config currently looks like :

filter-systemd.conf: |
    [FILTER]
        Name modify
        Match systemd.*
        Rename _SYSTEMD_UNIT systemd_unit
        Rename _HOSTNAME hostname

    [FILTER]
        Name grep
        Match systemd.*
        regex SYSLOG_IDENTIFIER kubelet|sshd|sudo|systemd-logind
        Exclude PRIORITY ^[7]$

   [FILTER]
        Name grep
        Match systemd.*
        regex SYSLOG_IDENTIFIER containerd
        Exclude PRIORITY ^[4567]$

    [FILTER]
        Name record_modifier
        Match systemd.*
        Remove_Key _CURSOR
        Remove_Key _REALTIME_TIMESTAMP
        Remove_Key _MONOTONIC_TIMESTAMP
        Remove_Key _BOOT_ID
        Remove_Key _MACHINE_ID

However, currently there are no containerd logs being pushed using fluentbit. Even if I remove the Exclude PRIORITY ^[4567]$ line, it still doesn't push any containerd logs. I am not able to setup different log levels for different systemd services. Any help will be appreciated, thanks.