Unable to commit xSTP edge interface configuration

Hi.

I have a completly new ex3400 VC setup where I have issues to commit a configuration with rstp edge configuration set to a interface range.

The stack consists of 7 x ex3400-48T running JunOS 18.2R3-S4.1.

If I just take one random interface and issue the command set protocol rstp interface ge-6/0/1 edge and do a commit, the configuration is commited. But if instead do set protocol rstp interface AccessPort-BaseConfig edge and do a commit I get this error message:

error: Unique id allocation failed for '//var/etc/stp_port.id' - no more free ids
error: Failed to allocate unique port-id for xSTP - likely due to exceeding the number of user configurable STP ports which is 4095
error: foreign file propagation (ffp) failed

The interface range configuration looks like this:

interfaces {
    interface-range AccessPort-BaseConfig {
        member-range ge-0/0/0 to ge-6/0/47;
        unit 0 {
            family ethernet-switching {
                interface-mode access;
                storm-control default;
            }
        }
    }

This is working on at least two other setups running the smae JunOS version.I have tried to reboot the stack completly, with the same result.

Any ideas?

Best regards,
Johan Christensson