NNMi alerts owned by opc_adm in HPOM

Have a current weird problem, where I see alerts owned in HPOM by opc_adm due to the web services integration of NNMi with HPOM.

I can't see it documented anywhere (as usual so often with these things!).  HP support are investigating.

If anyone else has any experience of this please share your tips.

Thanks,
Dave