Having the same issue with recent AICP builds. Even though it passes safety net its not showing up in PlayStore. Downloading / installing apk works fine. Would you mind sharing what you figured out?I was finally able to reproduce the issue. I reinstalled everything fresh again, and after I updated some apps in the play store, I could no longer find the Netflix app. Super odd situation, but I think I narrowed down what's causing it. Going to test the fix out tonight, and if everything is good I'll upload the new build tomorrow.
A temporary workaround would be to download the Netflix apk and install it that way. I know you said you tried to download it from apk mirror but got an error. Did you download the apk, or the apk bundle package they offer?
I installed the apk from uptodown without any issues. I'll keep you updated on the fix I'm trying though, thanks for letting me know about this!
P. S. Nice project btw. If i wouldn't be into AICP, i would flash it for sure.