Please follow these guidance to post a screenshot, because I don’t see a screenshot.
Further, please can you tell us, which STAR you mean, where waypoints are missing.
According to your freeze:
It’s very unlikely that this has something todo wirh the AIRAC update because when there would exist a general issue, we would see many more reports here immediately.
But step by step:
Please let us know more details (which aircraft, which STAR you are using) and show us the screenshot please.
Thank you
Richard
PS: I assume you are using the latest XP12 release (not any beta), right?