Earlier this week I installed the latest version of OBS Studio. Before that the software was working fine. After the update I've had serious problems. When I attempt to make a recording and play it back, the audio plays with excellent quality but the video is overlaid with a black screen on which there are strange patterns of shimmering arrows. At the extreme bottom of the screen and also at the extreme right I can see parts of the video. I have never had this problem before.
17:48:18.862: rtmp-common.c: [initialize_output] Could not find service ''
17:48:18.863: ---------------------------------
17:48:18.863: [x264 encoder: 'simple_h264_recording'] preset: veryfast
17:48:18.863: [x264 encoder: 'simple_h264_recording'] profile: high
17:48:18.863: [x264 encoder: 'simple_h264_recording'] settings:
17:48:18.863: rate_control: CRF
17:48:18.863: bitrate: 0
17:48:18.863: buffer size: 0
17:48:18.863: crf: 16
17:48:18.863: fps_num: 30
17:48:18.863: fps_den: 1
17:48:18.863: width: 1920
17:48:18.863: height: 1080
17:48:18.863: keyint: 250
17:48:18.863:
17:48:18.879: [Media Foundation AAC: 'simple_aac_recording']: encoder created
17:48:18.879: bitrate: 128
17:48:18.879: channels: 2
17:48:18.879: sample rate: 48000
17:48:18.879: bits-per-sample: 16
17:48:18.879:
17:48:18.913: ==== Recording Start ===============================================
17:48:18.913: [ffmpeg muxer: 'simple_file_output'] Writing file 'E:/Saved Video/2017-08-23 17-48-18.mp4'...
17:49:31.295: [ffmpeg muxer: 'simple_file_output'] Output of file 'E:/Saved Video/2017-08-23 17-48-18.mp4' stopped
17:49:31.295: Output 'simple_file_output': stopping
17:49:31.295: Output 'simple_file_output': Total frames output: 2144
17:49:31.295: Output 'simple_file_output': Total drawn frames: 2166 (2172 attempted)
17:49:31.295: Output 'simple_file_output': Number of lagged frames due to rendering lag/stalls: 6 (0.3%)
17:49:31.295: ==== Recording Stop ================================================
17:53:03.395: rtmp-common.c: [initialize_output] Could not find service ''
17:53:03.397: rtmp-common.c: [initialize_output] Could not find service ''
17:53:03.399: rtmp-common.c: [initialize_output] Could not find service ''
17:53:03.483: rtmp-common.c: [initialize_output] Could not find service ''
17:53:09.799: rtmp-common.c: [initialize_output] Could not find service ''
17:54:30.249: WASAPI: Device 'Speakers (VIA HD Audio)' Terminated
17:54:30.297: WASAPI: Device 'SAMSUNG-4 (NVIDIA High Definition Audio)' initialized
17:54:30.311: Settings changed (audio)
17:54:30.311: ------------------------------------------------
17:57:24.357: adding 21 milliseconds of audio buffering, total audio buffering is now 21 milliseconds
17:57:53.534: rtmp-common.c: [initialize_output] Could not find service ''
17:57:53.534: ---------------------------------
17:57:53.534: [x264 encoder: 'simple_h264_recording'] preset: veryfast
17:57:53.534: [x264 encoder: 'simple_h264_recording'] profile: high
17:57:53.534: [x264 encoder: 'simple_h264_recording'] settings:
17:57:53.534: rate_control: CRF
17:57:53.534: bitrate: 0
17:57:53.534: buffer size: 0
17:57:53.534: crf: 16
17:57:53.534: fps_num: 30
17:57:53.534: fps_den: 1
17:57:53.534: width: 1920
17:57:53.534: height: 1080
17:57:53.534: keyint: 250
17:57:53.534:
17:57:53.549: [Media Foundation AAC: 'simple_aac_recording']: encoder created
17:57:53.549: bitrate: 128
17:57:53.549: channels: 2
17:57:53.549: sample rate: 48000
17:57:53.549: bits-per-sample: 16
17:57:53.549:
17:57:53.564: ==== Recording Start ===============================================
17:57:53.564: [ffmpeg muxer: 'simple_file_output'] Writing file 'E:/Saved Video/2017-08-23 17-57-53.mp4'...
17:59:58.252: [ffmpeg muxer: 'simple_file_output'] Output of file 'E:/Saved Video/2017-08-23 17-57-53.mp4' stopped
17:59:58.252: Output 'simple_file_output': stopping
17:59:58.252: Output 'simple_file_output': Total frames output: 3696
17:59:58.252: Output 'simple_file_output': Total drawn frames: 2987 (3740 attempted)
17:59:58.252: Output 'simple_file_output': Number of lagged frames due to rendering lag/stalls: 753 (20.1%)
17:59:58.253: ==== Recording Stop ================================================
17:59:58.276: Video stopped, number of skipped frames due to encoding lag: 684/3740 (18.3%)
17:48:18.862: rtmp-common.c: [initialize_output] Could not find service ''
17:48:18.863: ---------------------------------
17:48:18.863: [x264 encoder: 'simple_h264_recording'] preset: veryfast
17:48:18.863: [x264 encoder: 'simple_h264_recording'] profile: high
17:48:18.863: [x264 encoder: 'simple_h264_recording'] settings:
17:48:18.863: rate_control: CRF
17:48:18.863: bitrate: 0
17:48:18.863: buffer size: 0
17:48:18.863: crf: 16
17:48:18.863: fps_num: 30
17:48:18.863: fps_den: 1
17:48:18.863: width: 1920
17:48:18.863: height: 1080
17:48:18.863: keyint: 250
17:48:18.863:
17:48:18.879: [Media Foundation AAC: 'simple_aac_recording']: encoder created
17:48:18.879: bitrate: 128
17:48:18.879: channels: 2
17:48:18.879: sample rate: 48000
17:48:18.879: bits-per-sample: 16
17:48:18.879:
17:48:18.913: ==== Recording Start ===============================================
17:48:18.913: [ffmpeg muxer: 'simple_file_output'] Writing file 'E:/Saved Video/2017-08-23 17-48-18.mp4'...
17:49:31.295: [ffmpeg muxer: 'simple_file_output'] Output of file 'E:/Saved Video/2017-08-23 17-48-18.mp4' stopped
17:49:31.295: Output 'simple_file_output': stopping
17:49:31.295: Output 'simple_file_output': Total frames output: 2144
17:49:31.295: Output 'simple_file_output': Total drawn frames: 2166 (2172 attempted)
17:49:31.295: Output 'simple_file_output': Number of lagged frames due to rendering lag/stalls: 6 (0.3%)
17:49:31.295: ==== Recording Stop ================================================
17:53:03.395: rtmp-common.c: [initialize_output] Could not find service ''
17:53:03.397: rtmp-common.c: [initialize_output] Could not find service ''
17:53:03.399: rtmp-common.c: [initialize_output] Could not find service ''
17:53:03.483: rtmp-common.c: [initialize_output] Could not find service ''
17:53:09.799: rtmp-common.c: [initialize_output] Could not find service ''
17:54:30.249: WASAPI: Device 'Speakers (VIA HD Audio)' Terminated
17:54:30.297: WASAPI: Device 'SAMSUNG-4 (NVIDIA High Definition Audio)' initialized
17:54:30.311: Settings changed (audio)
17:54:30.311: ------------------------------------------------
17:57:24.357: adding 21 milliseconds of audio buffering, total audio buffering is now 21 milliseconds
17:57:53.534: rtmp-common.c: [initialize_output] Could not find service ''
17:57:53.534: ---------------------------------
17:57:53.534: [x264 encoder: 'simple_h264_recording'] preset: veryfast
17:57:53.534: [x264 encoder: 'simple_h264_recording'] profile: high
17:57:53.534: [x264 encoder: 'simple_h264_recording'] settings:
17:57:53.534: rate_control: CRF
17:57:53.534: bitrate: 0
17:57:53.534: buffer size: 0
17:57:53.534: crf: 16
17:57:53.534: fps_num: 30
17:57:53.534: fps_den: 1
17:57:53.534: width: 1920
17:57:53.534: height: 1080
17:57:53.534: keyint: 250
17:57:53.534:
17:57:53.549: [Media Foundation AAC: 'simple_aac_recording']: encoder created
17:57:53.549: bitrate: 128
17:57:53.549: channels: 2
17:57:53.549: sample rate: 48000
17:57:53.549: bits-per-sample: 16
17:57:53.549:
17:57:53.564: ==== Recording Start ===============================================
17:57:53.564: [ffmpeg muxer: 'simple_file_output'] Writing file 'E:/Saved Video/2017-08-23 17-57-53.mp4'...
17:59:58.252: [ffmpeg muxer: 'simple_file_output'] Output of file 'E:/Saved Video/2017-08-23 17-57-53.mp4' stopped
17:59:58.252: Output 'simple_file_output': stopping
17:59:58.252: Output 'simple_file_output': Total frames output: 3696
17:59:58.252: Output 'simple_file_output': Total drawn frames: 2987 (3740 attempted)
17:59:58.252: Output 'simple_file_output': Number of lagged frames due to rendering lag/stalls: 753 (20.1%)
17:59:58.253: ==== Recording Stop ================================================
17:59:58.276: Video stopped, number of skipped frames due to encoding lag: 684/3740 (18.3%)