App Store Connect App Fingerprint Authentication (TouchID) Ignored

If I haven't used the App Store Connect app for a day or so, it prompts for fingerprint authentication (TouchID) and accepts it but subsequently it also asks for the password too. It seems to ignore the results of the fingerprint authentication if I haven't used the app for a while. Fingerprint authentication works on my phone for all the other apps that use it (including the old iTunes Connect app). I'm tempted to turn off fingerprint authentication in the App Store Connect app and just skip the extra step. Has anyone else had this problem?