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Dear who concern:

For some “mp4” video, LibVLC 4.0.0 Dev(nightly build) doesn’t work well. It works well using LibVLC 3.0.11(Released) .

Some Log for LibVLC 4.0.0 when playing mp4 file

direct3d11 vout display debug: Direct3D11 resources created
direct3d11 vout display debug: Direct3D11 display adapter successfully initialized
direct3d11 vout display debug: Direct3D11 Open Succeeded
main generic debug: using vout display module "direct3d11"
main video output debug: original format sz 3840x1090, of (0,0), vsz 3840x1080, 4cc I420, sar 1:1, msk r0x0 g0x0 b0x0
main spu text debug: removing module "freetype"
main generic debug: looking for text renderer module matching "any": 2 candidates
“Player.exe”(Win32): Remove“C:\Windows\System32\DWrite.dll” freetype spu text debug: Using DWrite backend
main generic debug: using text renderer module "freetype"
window window debug: leaving fullscreen mode
main video output debug: requested window size: 3840x1080
main input debug: control type=27
main subpicture warning: original picture size is undefined
freetype spu text debug: DWrite_GetFamily(): family name: arial
freetype spu text debug: DWrite_ParseFamily(): using font at index 0 with weight 400 for bold: 0, italic: 0
freetype spu text debug: DWrite_ParseFamily(): using font at index 1 with weight 700 for bold: 1, italic: 0
freetype spu text debug: DWrite_ParseFamily(): using font at index 2 with weight 400 for bold: 0, italic: 1
freetype spu text debug: DWrite_ParseFamily(): using font at index 3 with weight 700 for bold: 1, italic: 1
main decoder debug: vout change: multiview
main video output debug: requested window size: 3840x1080
Thread 0x35b0 Exit，Return 0 (0x0)。
“Player.exe”(Win32): Remove“C:\Windows\System32\D3DCompiler_47.dll”
direct3d11 vout display debug: Direct3D11 resources destroyed
Thread 0x4260 Exti，Return 0 (0x0)。
…………………………
Thread 0x7ec Exti，Return 0 (0x0)。

MONZA::DdiThreadingContext<MONZA::AdapterTraits_Gen12LP>::msg_end，at 0x000000494FBDFC80 。
Thread 0x49fc Exti，Return 0 (0x0)。
0x00007FFC3D693E49 at(Player.exe ): Microsoft C++ abnormal: MONZA::IgcThreadingContext<MONZA::AdapterTraits_Gen12LP>::msg_end，at 0x000000494FADFA10 。
Thread 0x6c8 Exti，Return 0 (0x0)。
“Player.exe”(Win32): Removed“C:\Windows\System32\DriverStore\FileRepository\iigd_dch.inf_amd64_03777b3a07d7d753\igc64.dll”
“Player.exe”(Win32): Removed“C:\Windows\System32\DriverStore\FileRepository\iigd_dch.inf_amd64_03777b3a07d7d753\igdgmm64.dll”
“Player.exe”(Win32): Removed“C:\Windows\System32\DriverStore\FileRepository\iigd_dch.inf_amd64_03777b3a07d7d753\igd10iumd64.dll”
direct3d11 vout display debug: Direct3D11 display adapter closed
direct3d11 vout display debug: Win32 Vout EventThread terminating
direct3d11 vout display debug: Win32VoutCloseWindow
direct3d11 vout display debug: WinProc WM_DESTROY
Thread 0x1278 Exti，Return 0 (0x0)。
main video output debug: deinterlace -1, mode auto, is_needed 0
main video output debug: Opening vout display wrapper
main generic debug: looking for vout display module matching "any": 6 candidates
direct3d11 vout display debug: Created the D3D11 device type 1 level b100.
direct3d11 vout display warning: failed to get the 0 MatchingDeviceId (2)
direct3d11 vout display debug: different 1 device pci\ven_10de&dev_1f97 vs PCI\VEN_8086&DEV_9A49&SUBSYS_87E2103C
direct3d11 vout display debug: NVIDIA WDDM driver 27.21.14.5225
direct3d11 vout display debug: creating Vout EventThread
direct3d11 vout display debug: Win32VoutCreateWindow
direct3d11 vout display debug: created video window
direct3d11 vout display debug: Vout EventThread running
direct3d11 vout display debug: UpdateRects source offset: 0,0 visible: 3840x1080 decoded: 3840x1090
direct3d11 vout display debug: UpdateRects image_dst coords: 0,170 1284x361
direct3d11 vout display debug: Using pixel format I420 for chroma I420
direct3d11 vout display debug: supports colorspace RGB Rec.709 gamma:22 range:FULL
direct3d11 vout display debug: supports colorspace RGB Rec.709 gamma:22 range:STUDIO
direct3d11 vout display debug: supports colorspace RGB Rec.2020 gamma:22 range:STUDIO
direct3d11 vout display debug: supports colorspace RGB Rec.2020 gamma:22 range:FULL
direct3d11 vout display debug: supports colorspace RGB Rec.2020 gamma:2084 range:FULL
direct3d11 vout display debug: supports colorspace RGB Rec.2020 gamma:2084 range:STUDIO
direct3d11 vout display debug: Output max luminance: 270.0, colorspace RGB Rec.709 gamma:22 range:FULL, bits per pixel 8
direct3d11 vout display debug: using colorspace RGB Rec.709 gamma:22 range:FULL
direct3d11 vout display debug: psz_src_to_linear return pow(rgb, 1.0 / 0.45)
direct3d11 vout display debug: psz_primaries_transform return rgb
direct3d11 vout display debug: psz_tone_mapping return rgb * LuminanceScale
direct3d11 vout display debug: psz_linear_to_display return pow(rgb, 1.0 / 2.2)
direct3d11 vout display debug: psz_adjust_range return rgb
direct3d11 vout display debug: psz_sampler sample.x = shaderTexture[0].Sample(samplerState, coords).x;
sample.y = shaderTexture[1].Sample(samplerState, coords).x;
sample.z = shaderTexture[2].Sample(samplerState, coords).x;
sample.a = 1;
direct3d11 vout display debug: psz_move_planes return rgb
………………………………………………………………………………………………
direct3d11 vout display debug: psz_adjust_range return rgb
direct3d11 vout display debug: psz_sampler sample = shaderTexture[0].Sample(samplerState, coords);
direct3d11 vout display debug: psz_move_planes return rgb
direct3d11 vout display debug: picQuad position (0.00,170.00) 1284.00x361.00
direct3d11 vout display debug: Direct3D11 resources created
direct3d11 vout display debug: Direct3D11 display adapter successfully initialized
direct3d11 vout display debug: Direct3D11 Open Succeeded
main generic debug: using vout display module "direct3d11"

The Last Four lines is just what list at top. It just a circle. Begin--end –Begin—end.

MoreInfo about the video can't play well

General
Format : Matroska
Format version : Version 2
Overall bit rate : 13.2 Mb/s

Video
ID : 2
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L5
Format settings : CABAC / 5 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference frames : 5 frames
Muxing mode : Header stripping
Codec ID : V_MPEG4/ISO/AVC
Duration :
Bit rate : 12.3 Mb/s
Width : 3 840 pixels
Height : 1 080 pixels
Display aspect ratio : 3.556
Frame rate mode : Constant
Frame rate : 24.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.123
Stream size : 205 MiB (93%)
Writing library : x264 core 138
Encoding settings : cabac=1 / ref=5 / deblock=1:0:0 / analyse=0x3:0x113 / me=umh / subme=8 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=6 / lookahead_threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=0 / weightp=2 / keyint=250 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=50 / rc=abr / mbtree=1 / bitrate=12288 / ratetol=1.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / frame-packing=3 / ip_ratio=1.40 / aq=1:1.00
Default : Yes
Forced : No
Frame rate : 31.250 FPS (1536 SPF)
Compression mode : Lossy
Stream size : 10.7 MiB (5%)
Service kind : Complete Main
Default : Yes
Forced : No

You should create a new ticket on the VLC Trac with your above report, links to some sample files and the link to this thread:
https://trac.videolan.org/vlc/

You should create a new ticket on the VLC Trac with your above report, links to some sample files and the link to this thread:
https://trac.videolan.org/vlc/

Thanks and I will try it.