I don’t think the S2: 128 means they were securely paired. I’m a little confused about that on non-secure or S0 devices (to be honest). The maximum security level supported by Inovelli bulbs is S0.
Our dimmers do have a problem sometimes pairing with S2 so there is a firmware update for those. You would need to include them as S0 to control the bulbs, but the S2 bug sometimes makes Hubitat downgrade the security to non-secure regardless of whether you choose S0 or S2 which is why I mention it.
https://community.inovelli.com/t/firmware-v1-48-beta-lzw31-sn-dimmer-red-series-gen-2
https://community.inovelli.com/t/firmware-v1-48-beta-lzw31-dimmer-black-series-gen-2