i'm not sure why it won't translate, i have two NSSA ABRs, one of them (highest RID) shows that it should be translating the LSAs from 7 to 5 but does not. I do see Type 7 LSAs in the Database. This is on a 6509 running 12.2(18)SXF8. Has anyone seen this before?
Looking at the database entry for the type 7 lsa, we can see that the routing bit is not set. It could be that the forward address is not learnt via ospf or that the type 7 itself is not installed in the RIB (also learnt via another protocol with better AD).
Can you post the output of a "show ip ro 10.255.30.0" and "show ip ro 10.250.1.230".