As others mentioned, give it a little bit and then contact AAdvantage Customer Service (either email or call the usual AA number during usual business hours and ask to speak to them).

BA postings can be finicky (along with IB, they make AA IT look good).

My last flight was a SWU upgraded BA flight. It posted as 0 LPs for my SO, which was not unexpected- I'll contact AA soon. What made it funnier is that it posted as 0 LPs for me dated back to last year. lol