No need to worry. Everything is fine and your PDUs are not "lost". The problem is that the PMI system "tricked" you into selecting the old/outdated activity instead of the current one. It's totally PMI's fault and not yours.
To explain: We originally submitted our activities to PMI without a dash in the Course-ID like this "PDUPC01". Then at some point, PMI came to us and said: "We are changing the CCRS and you need to re-input all your courses using a new Course-ID". So we had to 'duplicate' the courses and added a dash to the ID like this "PDUPC-01". But unfortunately, when you are searching by the course name, PMI will show you both the current and outdated course.
Therefore: Please submit your claim again and then search for the course by ID like this "PDUPC-01" and you'll always get the current one. (Obviously, if you are looking for the later webinar, then it's PDUPC-02, PDUPC-03 and so on...)
Please let me know if that helped and worked for you?