Hi @user0007,
Let me first understand what the issue is.
You first developed a project with RTD 3.0.0 -> then installed RTD P01 3.0.0 on top, and when trying to open the project, the tool prompts that S32K311 is not supported, right?
After this, uninstalling RTD P01 3.0.0 does not solve the issue, correct?
It seems like there is an issue with the stored RTD versions within S32DS Extensions and Updates. As I mentioned in my previous response, you can try uninstalling patch 01 (P01) and cleaning the "Managed Sites", then re-installing RTD 3.0.0 cleanly.
If this does not work, please try re-installing S32DS completely, as this may be a simpler and faster solution than trying to find out which packages are still installed.
Best regards,
Julián