What is the error prompt that you're getting? is it a valid ticker? try adding ticker to portfolio via ticker pageAre you facing the issue on the mobile app or the website?Which version of the mobile app are you using? please try updating to the latest version.
If the above suggestion do not work, please share a screenshot of the portfolio and error that you're getting and we'll try to resolve it ASAP.
Regards,Kushal MehrotraData QA Analyst, Seeking Alpha