Hello @EdwinBuynamics,
Welcome to the Sonar community, and many thanks for your feedback!
Since adding and removing this 10th project impacts the analysis outcome for some obscure reason, we might be hitting the default memory limit of the JVM here. Could you try to allocate more memory for the JVM? Here is a guide that will help you to do so.
Please let me know if this changes anything.
Thank you,
Yassin