It's dubious to think that people can be described by only nine personality types. They can't. That's where all the variations of type come in.
Enneagram tests can sometimes produce inconsistent results. While it's easy to blame the tests, it can also be something you're doing.
There are as many different interpretations of the Enneagram personality types as there are people studying and teaching them.
The accuracy of an Enneagram test is not only dependent on how well the test is designed but also on how good your responses are.
Some people seem to recognize their Enneagram type right away. Other people bounce between trying on different types.
While most people want an Enneagram test to tell them what their type is, a test is simply another tool to help you on a journey.