App crashes when retrieving authenticated OTP code from locked device

[NKelias]

• Application version: 1.3.2
• Operating system: Tested on Arch Linux 4.18.9 and Windows 10 64bit build 1803
• Device model and firmware version: NK Storage v0.52 with merged PR https://github.com/Nitrokey/nitrokey-storage-firmware/pull/73 (firmware attached)
• Connected USB port type: 3.0
• Issue occurrency: always

Firmware: firmware_v052_pr73.zip

Expected behaviour

Prompt user for User PIN

Current behaviour

App crashes with message

Critical error encountered. Please restart application.
Message: Command execution has failed on device

Steps for reproduction

Preconditions

• OTP codes protected by user password

Steps

1. Unlock device by using Unlock Password Safe function via app
2. Retrieve OTP code from device (successful)
3. Lock Device by using Lock Device function via app
4. Retrieve OTP code from device (fails)

Logs

Logs attached: nk.log

[szszszsz]

Should be fixed with 1.5 release