re-created system by LMDB does not show

Hi:

My co-worker deleted a managed system SS1 from LMDB.

Then immediately he used LMDB to re-create SS1.

Then RZ70 and Visual Administrator SLD test are both run successfully (this is dual stack on NW7.0)

However, on Solman7.1 SS1 cannot be found.

1) how to make SS1 show up?

2) where can we find the trace or log since there is no error show?

Thanks!