I've tried a few things and cannot reproduce, but I can't tell exactly how you have your suites constructed based on your screenshots. Can you post a skeleton matching your suite/sub-suite design that I can compile here? I don't need your actual test code, just a skeleton of the package(s), test procedures and annotations within.
There are two ways to achieve sub-suite type of logic. You can use two suites where each share a common suitepath or you can have a single suite and use --%context annotations within to make sub-suites. I've tried both and in both cases the text report matches the layout of my suites.
The plain text report comes directly from utPLSQL so anything in there would be due to the framework. Your first screenshot shows a failure at the country_name level, but the test beneath has passed. Do you have other tests beneath that level that have failed? If not, click the failed country_name node and look at the bottom of the Unit Test Manager window for any clues. Has the framework reported an error in that suite possibly due to malformed annotations?