1. You should ensure you have the most current version for your phone by visiting this LINK:
2. In addition, possibily (as a last resort), you could delete / remove current USAA Moble App from your phone and re-download / install / set-up new version.
3. Also, you could report your problems with the USAA Mobile App by either calling USAA and/or contact USAA by email (see here for instructions on how).
I hope this helps you (and others)