This is a real head-scratcher.  I asked her to uninstall/reinstall her app, restart her phone.  Regardless, she is unable to choose certain expenses when she creates an expense 'from scratch' on her mobile device.   When she moves it to an expense report, she can change it, but it results in her having to set it to an acceptable account, and then changing it once she moves it.   Has anyone encountered this?  She is using an iOS Version 16.5.1 (c) and has an iPhone 13 Pro Max.  She is the only user with this issue.