The sort order of the Schema Browser left hand grid side is now broken in regards to names containing underscores. It ignores the NLS_SORT setting, which in my case is BINARY (so should consider underscore) and also behaves differently from both 12.1 and results from a query. It is almost like the grid is overriding the result order and sorting based on names with the underscore removed. I’m not sure if this sort issue is the case in other places, but it beyond annoying as I am now missing tables from visual scans.
e.g. Sort Order…
12.0 - 12.1.x.x (correct)
TD_ADMIN_REPORT_TERM
TD_BMK
T_DATA_DELETE_CODE
SQL (correct)
TD_ADMIN_REPORT_TERM
TD_BMK
T_DATA_DELETE_CODE
12.5.1.1 (incorrect)
TD_ADMIN_REPORT_TERM
T_DATA_DELETE_CODE << Underscore being ignored.
TD_BMK