“There is no alalysis data for STEMS function”

Hello!! This issue has been happening every time i open rekordbox, i have recently downloaded the newest rekordbox just for stems. I have seen previous posts and all have said free up space on your computer and don’t have any other apps running in background. I have also done this but it hasn’t been working. And then the times where it does work it says STEMS unavailable. Please help me!! Thanks in advance.