PSDK V3.5 / M300 RKT - "get remote addr failed" on liveview

Hello,
I set up a M300 with PSDK 3.5 running on Ubuntu 22.04. Up to now I was using OSDK 4.1.0 without any problems.

When I'm running the sample code für C++, the application starts normally.

[0.000][core]-[Info]-[DjiCore_Init:101) Payload SDK Version : V3.5.0-beta.0-build.1764
[0.395][linker]-[Warn]-[DjiProtocol_v1Unpack:177) protocol frame crc8 error
[2.346][utils]-[Info]-[DjiSdkVersionAck_Parse:183) Identify aircraft serial number = 1ZN3K81001P007, Firmware = 3.4.18.29
[2.400][adapter]-[Info]-[DjiAccessAdapter_Init:186) Identify aircraft series is Matrice 300 Series
[2.400][adapter]-[Info]-[DjiAccessAdapter_Init:206) Identify mount position type is Extension Port Type
[2.410][adapter]-[Info]-[DjiAccessAdapter_Init:301) Identity uart0 baudrate is 921600 bps
[2.410][adapter]-[Info]-[DjiPayloadNegotiate_Init:144) No need negotiate device info
[2.474][adapter]-[Info]-[DjiPayloadNegotiate_Init:144) No need negotiate device info
[3.612][core]-[Info]-[DjiIdentityVerify_UpdatePolicy:470) Updating dji sdk policy file...
[4.612][core]-[Info]-[DjiIdentityVerify_UpdatePolicy:473) Update dji sdk policy file successfully
[4.620][core]-[Info]-[DjiCore_Init:169) Identify AircraftType = Matrice 300 RTK, MountPosition = Extension Port, SdkAdapterType = None
[4.652][core]-[Info]-[DjiCore_ApplicationStart:239) Start dji sdk application
[4.652][user]-[Info]-[DjiUser_ApplicationStart:261) Application start.

When I now select e.g. c for the Camera stream view sample, I get following error message:

[10.686][liveview]-[Error]-[DjiLiveview_UdpRegisterCallback:996) Get remote addr failed, ret:228.

I filled in the needed information in: 
- dji_sdk_app_info.h --> everything according app information + baud rate 921600
- hal_uart.h --> /dev/ttyUSB1 and /dev/ttyACM0
- hal_network.h --> usb0 according to ifconfig

ifconfig
enp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 172.26.251.100  netmask 255.255.255.0  broadcast 172.26.251.255
        ether 00:e0:4c:08:6a:e6  txqueuelen 1000  (Ethernet)
        RX packets 110617  bytes 115359184 (115.3 MB)
        RX errors 0  dropped 417  overruns 0  frame 0
        TX packets 69441  bytes 6079625 (6.0 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

enx00e04c6801e7: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 00:e0:4c:68:01:e7  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Lokale Schleife)
        RX packets 376933  bytes 300078232 (300.0 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 376933  bytes 300078232 (300.0 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

usb0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        ether 6e:f6:cc:7f:f1:df  txqueuelen 1000  (Ethernet)
        RX packets 1  bytes 56 (56.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 782  bytes 171558 (171.5 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Any idea why the liveview example is not working?

BR,
Michael

cmake .. result:

 cmake ..
CMake Deprecation Warning at CMakeLists.txt:1 (cmake_minimum_required):
  Compatibility with CMake < 2.8.12 will be removed from a future version of
  CMake.

  Update the VERSION argument <min> value or use a ...<max> suffix to tell
  CMake that the project does not need compatibility with older versions.

-- Found OPUS installed in the system
--  - Includes: /usr/include/opus
--  - Libraries: /usr/lib/x86_64-linux-gnu/libopus.so
-- Found LIBUSB installed in the system
--  - Includes: /usr/include/libusb-1.0
--  - Libraries: /usr/lib/x86_64-linux-gnu/libusb-1.0.so

dji_sdk_demo_linux_cxx...
-- Found OpenCV installed in the system, will use it to display image in AdvancedSensing APIs
--  - Includes: /usr/include/opencv4
--  - Libraries: opencv_calib3d;opencv_core;opencv_dnn;opencv_features2d;opencv_flann;opencv_highgui;opencv_imgcodecs;opencv_imgproc;opencv_ml;opencv_objdetect;opencv_photo;opencv_stitching;opencv_video;opencv_videoio;opencv_alphamat;opencv_aruco;opencv_barcode;opencv_bgsegm;opencv_bioinspired;opencv_ccalib;opencv_datasets;opencv_dnn_objdetect;opencv_dnn_superres;opencv_dpm;opencv_face;opencv_freetype;opencv_fuzzy;opencv_hdf;opencv_hfs;opencv_img_hash;opencv_intensity_transform;opencv_line_descriptor;opencv_mcc;opencv_optflow;opencv_phase_unwrapping;opencv_plot;opencv_quality;opencv_rapid;opencv_reg;opencv_rgbd;opencv_saliency;opencv_shape;opencv_stereo;opencv_structured_light;opencv_superres;opencv_surface_matching;opencv_text;opencv_tracking;opencv_videostab;opencv_viz;opencv_wechat_qrcode;opencv_ximgproc;opencv_xobjdetect;opencv_xphoto
-- Found FFMPEG installed in the system
--  - Includes: /usr/include/x86_64-linux-gnu
--  - Libraries: /usr/lib/x86_64-linux-gnu/libavcodec.so;/usr/lib/x86_64-linux-gnu/libavformat.so;/usr/lib/x86_64-linux-gnu/libavutil.so;/usr/lib/x86_64-linux-gnu/libswscale.so;/usr/lib/x86_64-linux-gnu/libvorbis.so;/usr/lib/x86_64-linux-gnu/libvorbisenc.so;/usr/lib/x86_64-linux-gnu/libtheora.so;/usr/lib/x86_64-linux-gnu/libz.so
--  - Version:  4.4.1-3ubuntu5
-- Found OPUS installed in the system
--  - Includes: /usr/include/opus
--  - Libraries: /usr/lib/x86_64-linux-gnu/libopus.so
-- Found LIBUSB installed in the system
--  - Includes: /usr/include/libusb-1.0
--  - Libraries: /usr/lib/x86_64-linux-gnu/libusb-1.0.so
-- Configuring done
CMake Error: Unable to open check cache file for write. /home/dji/Payload-SDK-3.5/build/CMakeFiles/cmake.check_cache