I am experiencing the same issue. This started when updating the PS Remote Play to the latest version following the Playstation being updated to version 4 of the PS system software. OBS is running on another machine, so I'm copy/pasting the logfile below. It does not seem remarkably different from the logfiles for successful game captures.
19:19:48.074: CPU Name: Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz
19:19:48.074: CPU Speed: 2400MHz
19:19:48.074: Physical Cores: 4, Logical Cores: 4
19:19:48.074: Physical Memory: 4094MB Total, 2472MB Free
19:19:48.074: Windows Version: 10.0 Build 10586 (revision: 0)
19:19:48.074: Running as administrator: false
19:19:48.074: Aero is Enabled (Aero is always on for windows 8 and above)
19:19:48.134: OBS 0.15.4 (64bit, windows)
19:19:48.134: ---------------------------------
19:19:48.136: ---------------------------------
19:19:48.136: audio settings reset:
19:19:48.136: samples per sec: 44100
19:19:48.136: speakers: 2
19:19:48.179: ---------------------------------
19:19:48.180: Initializing D3D11..
19:19:48.180: Available Video Adapters:
19:19:48.182: Adapter 1: AMD Radeon R9 200 Series
19:19:48.182: Dedicated VRAM: 2127720448
19:19:48.182: Shared VRAM: 2146691072
19:19:48.182: output 1: pos={0, 0}, size={1920, 1080}, attached=true
19:19:48.186: Loading up D3D11 on adapter AMD Radeon R9 200 Series (0)
19:19:48.215: D3D11 loaded sucessfully, feature level used: 45056
19:19:49.629: ---------------------------------
19:19:49.629: video settings reset:
19:19:49.629: base resolution: 1920x1080
19:19:49.629: output resolution: 1280x720
19:19:49.629: fps: 30/1
19:19:49.629: format: NV12
19:19:49.631: ---------------------------------
19:19:49.635: [CoreAudio encoder]: CoreAudio AAC encoder not installed on the system or couldn't be loaded
19:19:55.682: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/libcef.dll' not found, loading of module failed
19:19:55.735: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/libEGL.dll' not found, loading of module failed
19:19:55.968: Required module function 'obs_module_load' in module '../../obs-plugins/64bit/libGLESv2.dll' not found, loading of module failed
19:19:56.110: Failed to load 'en-US' text for module: 'obs-browser.dll'
19:19:56.241: LoadLibrary failed for 'nvEncodeAPI64.dll', error: 126
19:19:56.540: Couldn't find VLC installation, VLC video source disabled
19:19:56.956: No blackmagic support
19:19:57.204: ---------------------------------
19:19:57.204: Loaded Modules:
19:19:57.204: win-wasapi.dll
19:19:57.204: win-mf.dll
19:19:57.204: win-dshow.dll
19:19:57.204: win-decklink.dll
19:19:57.204: win-capture.dll
19:19:57.204: vlc-video.dll
19:19:57.204: text-freetype2.dll
19:19:57.204: rtmp-services.dll
19:19:57.204: obs-x264.dll
19:19:57.204: obs-transitions.dll
19:19:57.204: obs-qsv11.dll
19:19:57.204: obs-outputs.dll
19:19:57.204: obs-filters.dll
19:19:57.204: obs-ffmpeg.dll
19:19:57.204: obs-browser.dll
19:19:57.204: image-source.dll
19:19:57.204: coreaudio-encoder.dll
19:19:57.204: ==== Startup complete ===============================================
19:19:57.222: Service '' not found
19:19:57.235: All scene data cleared
19:19:57.235: ------------------------------------------------
19:19:57.596: WASAPI: Device 'Speakers (Logitech G930 Gaming Headset)' initialized
19:19:57.616: WASAPI: Device 'Microphone (Logitech G930 Gaming Headset)' initialized
19:19:57.657: Switched to scene 'Scene'
19:19:57.657: adding 46 milliseconds of audio buffering, total audio buffering is now 46 milliseconds
19:19:57.658: ------------------------------------------------
19:19:57.658: Loaded scenes:
19:19:57.658: - scene 'Scene':
19:19:57.658: - source: 'Bioshock' (game_capture)
19:19:57.658: - source: 'PS Remote Play' (game_capture)
19:19:57.658: ------------------------------------------------
19:19:58.069: Update check: last known remote version is 0.15.4
19:20:10.831: [game-capture: 'PS Remote Play'] attempting to hook process: RemotePlay.exe
19:20:10.832: [game-capture: 'PS Remote Play'] using helper (compatibility hook)
19:20:11.201: [game-capture: 'PS Remote Play'] Hooked to process: RemotePlay.exe
19:20:11.201: [game-capture: 'PS Remote Play'] (half life scientist) everything.. seems to be in order
19:20:11.201: [game-capture: 'PS Remote Play'] Hooked D3D9
19:20:11.212: [game-capture: 'PS Remote Play'] Hooked DXGI
19:20:11.351: [game-capture: 'PS Remote Play'] d3d9 shared texture capture successful
19:20:14.187: adding 139 milliseconds of audio buffering, total audio buffering is now 185 milliseconds
19:20:28.606: [game-capture: 'PS Remote Play'] ----------------- d3d9 capture freed -----------------
19:20:28.627: [game-capture: 'PS Remote Play'] d3d9 shared texture capture successful
19:20:48.497: [game-capture: 'PS Remote Play'] capture window no longer exists, terminating capture