This is my log before I was able to view camcorder.
09:29:01.030: CPU Name: Intel(R) Core(TM) i7-7700T CPU @ 2.90GHz
09:29:01.030: CPU Speed: 2904MHz
09:29:01.030: Physical Cores: 4, Logical Cores: 8
09:29:01.030: Physical Memory: 16282MB Total, 13394MB Free
09:29:01.030: Windows Version: 10.0 Build 14393 (revision: 1066; 64-bit)
09:29:01.030: Running as administrator: false
09:29:01.030: Aero is Enabled (Aero is always on for windows 8 and above)
09:29:01.030: Portable mode: false
09:29:01.040: OBS 18.0.1 (64bit, windows)
09:29:01.040: ---------------------------------
09:29:01.040: ---------------------------------
09:29:01.040: audio settings reset:
09:29:01.040: samples per sec: 44100
09:29:01.040: speakers: 2
09:29:01.042: ---------------------------------
09:29:01.042: Initializing D3D11..
09:29:01.042: Available Video Adapters:
09:29:01.044: Adapter 1: Intel(R) HD Graphics 630
09:29:01.044: Dedicated VRAM: 134217728
09:29:01.044: Shared VRAM: 4241737728
09:29:01.044: output 1: pos={0, 0}, size={2560, 1440}, attached=true
09:29:01.044: Adapter 2: NVIDIA GeForce GTX 950M
09:29:01.044: Dedicated VRAM: 4262330368
09:29:01.044: Shared VRAM: 4241737728
09:29:01.047: Loading up D3D11 on adapter Intel(R) HD Graphics 630 (0)
09:29:01.053: D3D11 loaded sucessfully, feature level used: 45056
09:29:01.633: ---------------------------------
09:29:01.633: video settings reset:
09:29:01.633: base resolution: 2560x1440
09:29:01.633: output resolution: 1280x720
09:29:01.633: downscale filter: Bicubic
09:29:01.633: fps: 30/1
09:29:01.633: format: NV12
09:29:01.634: Audio monitoring device:
09:29:01.634: name: Default
09:29:01.634: id: default
09:29:01.634: ---------------------------------
09:29:01.636: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/chrome_elf.dll' not found, loading of module failed
09:29:01.637: [CoreAudio encoder]: CoreAudio AAC encoder not installed on the system or couldn't be loaded
09:29:01.638: [AMF Encoder] Unable to load 'amfrt64.dll', error code 126.
09:29:01.646: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/libcef.dll' not found, loading of module failed
09:29:01.647: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/libEGL.dll' not found, loading of module failed
09:29:01.648: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/libGLESv2.dll' not found, loading of module failed
09:29:01.648: Failed to load 'en-US' text for module: 'obs-browser.dll'
09:29:01.648: [browser_source: 'Version: 1.29.0']
09:29:01.650: NVENC supported
09:29:01.663: Couldn't find VLC installation, VLC video source disabled
09:29:01.832: ---------------------------------
09:29:01.832: Loaded Modules:
09:29:01.832: win-wasapi.dll
09:29:01.832: win-mf.dll
09:29:01.832: win-ivcam.dll
09:29:01.832: win-dshow.dll
09:29:01.832: win-decklink.dll
09:29:01.832: win-capture.dll
09:29:01.832: vlc-video.dll
09:29:01.832: text-freetype2.dll
09:29:01.832: rtmp-services.dll
09:29:01.832: obs-x264.dll
09:29:01.832: obs-vst.dll
09:29:01.832: obs-transitions.dll
09:29:01.832: obs-text.dll
09:29:01.832: obs-qsv11.dll
09:29:01.832: obs-outputs.dll
09:29:01.832: obs-filters.dll
09:29:01.832: obs-ffmpeg.dll
09:29:01.832: obs-browser.dll
09:29:01.832: image-source.dll
09:29:01.832: frontend-tools.dll
09:29:01.832: enc-amf.dll
09:29:01.832: coreaudio-encoder.dll
09:29:01.832: ==== Startup complete ===============================================
09:29:01.839: All scene data cleared
09:29:01.839: ------------------------------------------------
09:29:01.876: WASAPI: Device 'Speaker/Headphone (Realtek High Definition Audio)' initialized
09:29:01.898: WASAPI: Device 'Microphone (Realtek High Definition Audio)' initialized
09:29:01.898: Switched to scene 'SceneYouTube Stream'
09:29:01.898: ------------------------------------------------
09:29:01.898: Loaded scenes:
09:29:01.898: - scene 'SceneYouTube Stream':
09:29:01.899: ------------------------------------------------
09:29:01.907: adding 23 milliseconds of audio buffering, total audio buffering is now 23 milliseconds
09:29:14.433: User added source 'Video Capture Device' (dshow_input) to scene 'SceneYouTube Stream'
09:29:14.437: Video Capture Device: DecodeDeviceId failed
09:29:14.437: Video Capture Device: Video configuration failed
09:29:14.694: ---------------------------------
09:29:14.694: [DShow Device: 'Video Capture Device'] settings updated:
09:29:14.694: video device: Blackmagic WDM Capture
09:29:14.694: video path: \\?\decklink#avstream#9&1d6c3434&0&0000#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\decklinkcapture1
09:29:14.694: resolution: 720x486
09:29:14.694: fps: 23.98 (interval: 417083)
09:29:14.694: format: UYVY
09:29:14.696: using video device audio: yes
09:29:14.696: sample rate: 48000
09:29:14.696: channels: 2
09:29:14.696: audio type: Capture
09:29:18.873: adding 23 milliseconds of audio buffering, total audio buffering is now 46 milliseconds
09:31:23.468: ---------------------------------
09:31:23.468: video settings reset:
09:31:23.468: base resolution: 2560x1440
09:31:23.468: output resolution: 1920x1080
09:31:23.468: downscale filter: Bicubic
09:31:23.468: fps: 30/1
09:31:23.468: format: NV12
09:31:23.473: Settings changed (video)
09:31:23.473: ------------------------------------------------
09:31:38.226: User Removed source 'Video Capture Device' (dshow_input) from scene 'SceneYouTube Stream'