SecretsApp.list_with_properties (that is used for the list subcommand) requires app version 0.4.11 (firmware version 1.5.0). Otherwise, the last byte of the credential label is interpreted as the property byte (that is actually not part of the response).
$ nitropy nk3 secrets list
Command line tool to interact with Nitrokey devices 0.4.38
Please provide PIN to show PIN-protected entries (if any), or press ENTER to skip
Please touch the device if it blinks
Current PIN (7 attempts left):
Please touch the device if it blinks
01. HOTP test vecto Hotp/Sha1 PIN required
02. Tes Totp/Sha1 PWS data available
03. Test Totp/Sha1 PIN required
04. Test Totp/Sha1 touch required,PIN required
$ nitropy nk3 update
...
Current firmware version: v1.4.0
Updated firmware version: v1.5.0
....
$ nitropy nk3 secrets list
Command line tool to interact with Nitrokey devices 0.4.38
Please provide PIN to show PIN-protected entries (if any), or press ENTER to skip
Please touch the device if it blinks
Current PIN (8 attempts left):
Please touch the device if it blinks
01. HOTP test vector Hotp/Sha1
02. Test Totp/Sha1 PIN required
03. Test2 Totp/Sha1
04. Test3 Totp/Sha1
SecretsApp.list_with_properties(that is used for thelistsubcommand) requires app version 0.4.11 (firmware version 1.5.0). Otherwise, the last byte of the credential label is interpreted as the property byte (that is actually not part of the response).