I got a "buffer overflow detected" error when i was trying to stream a virtual monitor

[LC95]

intel uhd620 graphics,kubuntu
i created a virtual monitor(virtual1) using xrandr command,and i want to stream it to my android device.but seems the software didn't run so well. i don't know whether its a bug.
here is the xrandr --listmonitor result:

Monitors: 2
 0: +*eDP1 1920/290x1080/170+800+0  eDP1
 1: +VIRTUAL1 800/212x600/159+0+0  VIRTUAL1

sudo sunshine "output_name=1" will get an error, i tried software encode but resulted the same. but run sudo sunshine "output_name=0" is working perfectly

here is the output:

[encoder] -- [vaapi]
[nv_rc] -- [auto]
[hevc_mode] -- [0]
[dwmflush] -- [enabled]
[gamepad] -- [x360]
[nv_coder] -- [auto]
[resolutions] -- [[
    352x240,
    480x360,
    858x480,
    1280x720,
    1920x1080,
    2560x1080,
    3440x1440,
    1920x1200,
    3860x2160,
    3840x1600
]]
[origin_pin_allowed] -- [pc]
[key_rightalt_to_key_win] -- [disabled]
[vt_realtime] -- [enabled]
[audio_sink] -- [alsa_input.pci-0000_00_1f.3.analog-stereo]
[fps] -- [[10,30,60,90,120]]
[amd_quality] -- [default]
[origin_web_ui_allowed] -- [lan]
[vt_software] -- [auto]
[sunshine_name] -- [Linux Laptop]
[amd_coder] -- [auto]
[upnp] -- [enabled]
[nv_preset] -- [default]
[vt_coder] -- [auto]
[amd_rc] -- [auto]
[min_log_level] -- [2]
[output_name] -- [1]
Cannot load libcuda.so.1
[2022:11:03:22:38:38]: Error: Couldn't load cuda: -1
[2022:11:03:22:38:38]: Error: Environment variable WAYLAND_DISPLAY has not been defined
[2022:11:03:22:38:38]: Info: Detecting connected monitors
[2022:11:03:22:38:38]: Info: // Testing for available encoders, this may generate errors. You can safely ignore those errors. //
[2022:11:03:22:38:38]: Info: Trying encoder [vaapi]
[2022:11:03:22:38:38]: Info: Screencasting with KMS
*** buffer overflow detected ***: terminated
Aborted

[LC95]

i find the solution already

[ReenigneArcher]

i find the solution already

Please elaborate