volspotconnect2 v0.4.0 only one device can connect

Hello,

1: RPi3, Volumio 2.246, volspotconnect2 v0.4.0 Shared Device = On
2: RPi3, Volumio 2.246, volspotconnect2 v0.4.0 Shared Device = On
3: RPi 0 W, Volumio 2.246, volspotconnect2 v0.4.0 Shared Device = On

A: LG Android with Spotify APP
B: Samsung Android with Spotify App

Spotify Premium Family Account:
User: XXX
User: YYY

Device A and User XXX can connect to 1,2 or 3 without any problem.

Oct 07 20:50:41 volumiobad volumio[2258]: INFO:librespot_core::session: Connecting to AP "lon3-accesspoint-a52.ap.spotify.com:4070" Oct 07 20:50:42 volumiobad volumio[2258]: INFO:librespot_core::session: Authenticated as "XXX" ! Oct 07 20:50:42 volumiobad volumio[2258]: INFO:librespot_core::session: Country: "DE" Oct 07 20:50:42 volumiobad volumio[2258]: INFO:librespot::audio_backend::alsa: Using alsa sink Oct 07 20:50:42 volumiobad volumio[2258]: INFO:librespot::player: Loading track "rockstar" Oct 07 20:50:44 volumiobad volumio[2258]: INFO:librespot::player: Track "rockstar" loaded
Device B and User YYY can not connect to any one of 1,2 or 3.
1,2 and 3 are available devices on phone.

Oct 07 20:44:37 volumiobad volumio[30561]: note: Run with `RUST_BACKTRACE=1` for a backtrace. Oct 07 20:44:37 volumiobad systemd[1]: volspotconnect2.service: main process exited, code=exited, status=101/n/a Oct 07 20:44:37 volumiobad systemd[1]: Unit volspotconnect2.service entered failed state. Oct 07 20:44:40 volumiobad systemd[1]: volspotconnect2.service holdoff time over, scheduling restart. Oct 07 20:44:40 volumiobad systemd[1]: Stopping Volspotconnect2 Daemon... Oct 07 20:44:40 volumiobad systemd[1]: Starting Volspotconnect2 Daemon... Oct 07 20:44:40 volumiobad systemd[1]: Started Volspotconnect2 Daemon. Oct 07 20:44:40 volumiobad volumio[2137]: INFO:librespot: librespot ddfc28f (2017-08-04). Built on 2017-09-27. Build ID: ey9JCZkY Oct 07 20:44:40 volumiobad volumio[2137]: WARN:mdns: Failed to register IPv6 receiver: Error { repr: Os { code: 19, message: "No such device" } } Oct 07 20:44:41 volumiobad volumio[2137]: INFO:librespot_core::session: Connecting to AP "lon2-accesspoint-a12.ap.spotify.com:4070" Oct 07 20:44:42 volumiobad volumio[2137]: INFO:librespot_core::session: Authenticated as "YYY" ! Oct 07 20:44:42 volumiobad volumio[2137]: INFO:librespot_core::session: Country: "DE" Oct 07 20:44:42 volumiobad volumio[2137]: INFO:librespot::audio_backend::alsa: Using alsa sink Oct 07 20:44:44 volumiobad volumio[2137]: thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: WireError(Utf8Error)', /checkout/src/libcore/result.rs:859 Oct 07 20:44:44 volumiobad volumio[2137]: note: Run with `RUST_BACKTRACE=1` for a backtrace. Oct 07 20:44:44 volumiobad systemd[1]: volspotconnect2.service: main process exited, code=exited, status=101/n/a Oct 07 20:44:44 volumiobad systemd[1]: Unit volspotconnect2.service entered failed state. Oct 07 20:44:47 volumiobad systemd[1]: volspotconnect2.service holdoff time over, scheduling restart. Oct 07 20:44:47 volumiobad systemd[1]: Stopping Volspotconnect2 Daemon... Oct 07 20:44:47 volumiobad systemd[1]: Starting Volspotconnect2 Daemon... Oct 07 20:44:47 volumiobad systemd[1]: Started Volspotconnect2 Daemon. Oct 07 20:44:47 volumiobad volumio[2188]: INFO:librespot: librespot ddfc28f (2017-08-04). Built on 2017-09-27. Build ID: ey9JCZkY Oct 07 20:44:47 volumiobad volumio[2188]: WARN:mdns: Failed to register IPv6 receiver: Error { repr: Os { code: 19, message: "No such device" } } Oct 07 20:44:48 volumiobad volumio[2188]: INFO:librespot_core::session: Connecting to AP "lon2-accesspoint-a8.ap.spotify.com:4070" Oct 07 20:44:49 volumiobad volumio[2188]: INFO:librespot_core::session: Authenticated as "YYY" ! Oct 07 20:44:49 volumiobad volumio[2188]: INFO:librespot_core::session: Country: "DE" Oct 07 20:44:49 volumiobad volumio[2188]: INFO:librespot::audio_backend::alsa: Using alsa sink Oct 07 20:44:54 volumiobad volumio[2188]: thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: WireError(Utf8Error)', /checkout/src/libcore/result.rs:859 Oct 07 20:44:54 volumiobad volumio[2188]: note: Run with `RUST_BACKTRACE=1` for a backtrace. Oct 07 20:44:54 volumiobad systemd[1]: volspotconnect2.service: main process exited, code=exited, status=101/n/a Oct 07 20:44:54 volumiobad systemd[1]: Unit volspotconnect2.service entered failed state. Oct 07 20:44:57 volumiobad systemd[1]: volspotconnect2.service holdoff time over, scheduling restart. Oct 07 20:44:57 volumiobad systemd[1]: Stopping Volspotconnect2 Daemon... Oct 07 20:44:57 volumiobad systemd[1]: Starting Volspotconnect2 Daemon... Oct 07 20:44:57 volumiobad systemd[1]: Started Volspotconnect2 Daemon. Oct 07 20:44:57 volumiobad volumio[2258]: INFO:librespot: librespot ddfc28f (2017-08-04). Built on 2017-09-27. Build ID: ey9JCZkY Oct 07 20:44:57 volumiobad volumio[2258]: WARN:mdns: Failed to register IPv6 receiver: Error { repr: Os { code: 19, message: "No such device" } } Oct 07 20:44:58 volumiobad volumio[2258]: INFO:librespot_core::session: Connecting to AP "gew1-accesspoint-b-0gcr.ap.spotify.com:4070" Oct 07 20:44:59 volumiobad volumio[2258]: INFO:librespot_core::session: Authenticated as "YYY" ! Oct 07 20:44:59 volumiobad volumio[2258]: INFO:librespot_core::session: Country: "DE" Oct 07 20:44:59 volumiobad volumio[2258]: INFO:librespot::audio_backend::alsa: Using alsa sink

Did I do something wrong?
What can I do so Device B and User YYY also can use volspotconnect2?