Hi, thanks for the fast answer. Attached is the log of the first time I encountered this issue. All subsequent logs for the few times I tried again are similar, do you need them too ?
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2019-03-10 19:25:18: ActivePresenter 7.5.5 (Release Build: 2019.02.21) started
OS: Windows 7 (build 7601, Service Pack 1), 64-bit edition. Version: 6.1 - 64 bit
CPU Count: 2
Hostname: mpignon-PC. Memory: 6,015 MB. Available: 3,860 MB. Memory Load: 35%
Project Location: C:\Users\mpignon\Documents\ActivePresenter
Disk Space: 238,372 MB (Free: 22,636 MB)
2019-03-10 19:25:18: TempDir: C:\Users\mpignon\AppData\Roaming\ActivePresenter\temp
2019-03-10 19:25:20: PrepareRibbonBar: 738ms
2019-03-10 19:25:21: Opening project: C:\Users\mpignon\Documents\LP\PMDRRT\Let’sPlayPMDRRT01.approj
2019-03-10 19:25:21: Avertissement :Fichier de ressources introuvable: C:\Users\mpignon\Documents\LP\PMDRRT\Let’sPlayPMDRRT01_files\10001_Audio_002.wav
2019-03-10 19:25:21: Avertissement :Fichier de ressources introuvable: C:\Users\mpignon\Documents\LP\PMDRRT\Let’sPlayPMDRRT01_files\10003_Audio_004.wav
2019-03-10 19:25:24: Avertissement :Error running JavaScript: TypeError: Cet objet ne gère pas cette propriété ou cette méthode
2019-03-10 19:25:24: RLMedia: Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
2019-03-10 19:25:36: Audio Decoding Stats: Process 7066,000000, Wait 2866,000000
2019-03-10 19:25:36: Audio Encoding Stats: Process 1448,000000, Wait 8617,000000
2019-03-10 19:25:50: Checking updates for ActivePresenter v7.5.5…
2019-03-10 19:28:09: MF Version: 131184
2019-03-10 19:28:09: RLMedia: MFT name: ‘H264 Encoder MFT’
2019-03-10 19:28:09: RLMedia: MF Setting Framerate: 30 / 1
2019-03-10 19:28:09: RLMedia: MF Setting Nominal Range: 2
2019-03-10 19:28:09: RLMedia: MF Setting Quality: 70
2019-03-10 19:28:09: RLMedia: MF Setting GOPSize: 90
2019-03-10 19:28:09: RLMedia: MF Enabling CABAC FAILED: 0x80004001
2019-03-10 19:28:09: RLMedia: MF Setting Framerate: 30 / 1
2019-03-10 19:28:09: RLMedia: MF Setting Nominal Range: 2
2019-03-10 19:28:09: RLMedia: MF Setting Quality: 70
2019-03-10 19:28:09: RLMedia: MF Setting GOPSize: 90
2019-03-10 19:28:09: RLMedia: MF Enabling CABAC FAILED: 0x80004001
2019-03-10 19:28:09: s16 sample format is not supported, fltp will be used
2019-03-10 19:28:09: RLMedia: Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
2019-03-10 19:28:09: RLMedia: Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
2019-03-10 19:40:42: RLMedia: Qavg: 65536,000
2019-03-10 19:40:42: RLMedia: 2 frames left in the queue on closing
2019-03-10 19:28:09: Impossible d’ouvrir le fichier d’entrée [C:\Users\mpignon\AppData\Roaming\ActivePresenter\temp\rl_20190310_192536_r3zpzxh0da.wav]
2019-03-10 19:28:09: Impossible d’ouvrir le fichier d’entrée [C:\Users\mpignon\AppData\Roaming\ActivePresenter\temp\rl_20190310_192536_lsls7e9th4.wav]
2019-03-10 19:28:10: RLMedia: Read error at pos. 3363529044 (0xc87b6154)
2019-03-10 19:40:42: Video Encoding Stats: Process 738519,000000, Wait 14145,000000
2019-03-10 19:40:42: Audio Encoding Stats: Process 696028,000000, Wait 56605,000000
2019-03-10 19:40:42: Audio Decoding Stats: Process 81034,000000, Wait 671623,000000
2019-03-10 19:40:42: Video Decode Stats: Process 601745,000000, Wait 150722,000000, Decode 447262,000000
2019-03-10 19:41:22: RLMedia: MFT name: ‘H264 Encoder MFT’
2019-03-10 19:41:22: RLMedia: MF Setting Framerate: 30 / 1
2019-03-10 19:41:22: RLMedia: MF Setting Nominal Range: 2
2019-03-10 19:41:22: RLMedia: MF Setting Quality: 100
2019-03-10 19:41:22: RLMedia: MF Setting GOPSize: 90
2019-03-10 19:41:22: RLMedia: MF Enabling CABAC FAILED: 0x80004001
2019-03-10 19:41:22: RLMedia: MF Setting Framerate: 30 / 1
2019-03-10 19:41:22: RLMedia: MF Setting Nominal Range: 2
2019-03-10 19:41:22: RLMedia: MF Setting Quality: 100
2019-03-10 19:41:22: RLMedia: MF Setting GOPSize: 90
2019-03-10 19:41:22: RLMedia: MF Enabling CABAC FAILED: 0x80004001
2019-03-10 19:41:22: s16 sample format is not supported, fltp will be used
2019-03-10 19:41:22: RLMedia: Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
2019-03-10 19:41:22: RLMedia: Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
2019-03-10 19:41:59: RLMedia: Qavg: 65536,000
2019-03-10 19:41:59: RLMedia: 2 frames left in the queue on closing
2019-03-10 19:41:22: RLMedia: Read error at pos. 3363529044 (0xc87b6154)
2019-03-10 19:41:22: Impossible d’ouvrir le fichier d’entrée [C:\Users\mpignon\AppData\Roaming\ActivePresenter\temp\rl_20190310_192536_r3zpzxh0da.wav]
2019-03-10 19:41:22: Impossible d’ouvrir le fichier d’entrée [C:\Users\mpignon\AppData\Roaming\ActivePresenter\temp\rl_20190310_192536_lsls7e9th4.wav]
2019-03-10 19:41:59: Video Encoding Stats: Process 31112,000000, Wait 6271,000000
2019-03-10 19:41:59: Audio Encoding Stats: Process 17983,000000, Wait 19384,000000
2019-03-10 19:41:59: Audio Decoding Stats: Process 25651,000000, Wait 11732,000000
2019-03-10 19:41:59: Video Decode Stats: Process 35775,000000, Wait 1623,000000, Decode 28596,000000
2019-03-10 19:43:15: RLMedia: MFT name: ‘H264 Encoder MFT’
2019-03-10 19:43:15: RLMedia: MF Setting Framerate: 30 / 1
2019-03-10 19:43:15: RLMedia: MF Setting Nominal Range: 2
2019-03-10 19:43:15: RLMedia: MF Setting Quality: 100
2019-03-10 19:43:15: RLMedia: MF Setting GOPSize: 90
2019-03-10 19:43:15: RLMedia: MF Enabling CABAC FAILED: 0x80004001
2019-03-10 19:43:15: RLMedia: MF Setting Framerate: 30 / 1
2019-03-10 19:43:15: RLMedia: MF Setting Nominal Range: 2
2019-03-10 19:43:15: RLMedia: MF Setting Quality: 100
2019-03-10 19:43:15: RLMedia: MF Setting GOPSize: 90
2019-03-10 19:43:15: RLMedia: MF Enabling CABAC FAILED: 0x80004001
2019-03-10 19:43:15: s16 sample format is not supported, fltp will be used
2019-03-10 19:43:15: RLMedia: Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
2019-03-10 19:43:15: RLMedia: Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
2019-03-10 19:46:23: RLMedia: Qavg: 65536,000
2019-03-10 19:46:23: RLMedia: 2 frames left in the queue on closing
2019-03-10 19:43:15: RLMedia: Read error at pos. 3363529044 (0xc87b6154)
2019-03-10 19:43:15: Impossible d’ouvrir le fichier d’entrée [C:\Users\mpignon\AppData\Roaming\ActivePresenter\temp\rl_20190310_192536_r3zpzxh0da.wav]
2019-03-10 19:43:15: Impossible d’ouvrir le fichier d’entrée [C:\Users\mpignon\AppData\Roaming\ActivePresenter\temp\rl_20190310_192536_lsls7e9th4.wav]
2019-03-10 19:46:23: Video Encoding Stats: Process 187841,000000, Wait 327,000000
2019-03-10 19:46:23: Audio Encoding Stats: Process 163749,000000, Wait 24419,000000
2019-03-10 19:46:23: Audio Decoding Stats: Process 143924,000000, Wait 44196,000000
2019-03-10 19:46:23: Video Decode Stats: Process 169316,000000, Wait 18852,000000, Decode 129902,000000
2019-03-10 19:46:27: Preparing to play audio to: Haut-parleurs (USB Audio Device). Channel: 2. Sample rate: 48000. Sample Format: 8
2019-03-10 19:46:27: Could not open audio output stream to play: Invalid device.
2019-03-10 19:46:27: Preparing to play audio to: Haut-parleurs (USB Audio Device). Channel: 2. Sample rate: 44100. Sample Format: 8
2019-03-10 19:46:27: Impossible d’ouvrir le fichier d’entrée [C:\Users\mpignon\AppData\Roaming\ActivePresenter\temp\rl_20190310_192536_r3zpzxh0da.wav]
2019-03-10 19:46:27: Impossible d’ouvrir le fichier d’entrée [C:\Users\mpignon\AppData\Roaming\ActivePresenter\temp\rl_20190310_192536_lsls7e9th4.wav]
2019-03-10 19:46:27: RLMedia: Read error at pos. 3363529044 (0xc87b6154)
2019-03-10 19:46:49: Preparing to play audio to: Haut-parleurs (USB Audio Device). Channel: 2. Sample rate: 44100. Sample Format: 8
2019-03-10 19:46:49: Impossible d’ouvrir le fichier d’entrée [C:\Users\mpignon\AppData\Roaming\ActivePresenter\temp\rl_20190310_192536_r3zpzxh0da.wav]
2019-03-10 19:46:49: Impossible d’ouvrir le fichier d’entrée [C:\Users\mpignon\AppData\Roaming\ActivePresenter\temp\rl_20190310_192536_lsls7e9th4.wav]
2019-03-10 19:46:49: RLMedia: Read error at pos. 3363529044 (0xc87b6154)
2019-03-10 19:47:08: Impossible d’ouvrir le fichier d’entrée [C:\Users\mpignon\AppData\Roaming\ActivePresenter\temp\rl_20190310_192536_r3zpzxh0da.wav]
2019-03-10 19:47:11: Impossible d’ouvrir le fichier d’entrée [C:\Users\mpignon\AppData\Roaming\ActivePresenter\temp\rl_20190310_192536_r3zpzxh0da.wav]
2019-03-10 19:47:11: Impossible d’ouvrir le fichier d’entrée [C:\Users\mpignon\AppData\Roaming\ActivePresenter\temp\rl_20190310_192536_r3zpzxh0da.wav]
2019-03-10 19:47:12: Impossible d’ouvrir le fichier d’entrée [C:\Users\mpignon\AppData\Roaming\ActivePresenter\temp\rl_20190310_192536_r3zpzxh0da.wav]
2019-03-10 19:47:12: Impossible d’ouvrir le fichier d’entrée [C:\Users\mpignon\AppData\Roaming\ActivePresenter\temp\rl_20190310_192536_r3zpzxh0da.wav]
2019-03-10 19:47:12: Impossible d’ouvrir le fichier d’entrée [C:\Users\mpignon\AppData\Roaming\ActivePresenter\temp\rl_20190310_192536_r3zpzxh0da.wav]
2019-03-10 19:47:12: Impossible d’ouvrir le fichier d’entrée [C:\Users\mpignon\AppData\Roaming\ActivePresenter\temp\rl_20190310_192536_r3zpzxh0da.wav]
2019-03-10 19:47:16: Impossible d’ouvrir le fichier d’entrée [C:\Users\mpignon\AppData\Roaming\ActivePresenter\temp\rl_20190310_192536_lsls7e9th4.wav]
2019-03-10 19:47:21: Impossible d’ouvrir le fichier d’entrée [C:\Users\mpignon\AppData\Roaming\ActivePresenter\temp\rl_20190310_192536_lsls7e9th4.wav]
2019-03-10 19:47:21: Impossible d’ouvrir le fichier d’entrée [C:\Users\mpignon\AppData\Roaming\ActivePresenter\temp\rl_20190310_192536_lsls7e9th4.wav]
2019-03-10 19:47:21: Impossible d’ouvrir le fichier d’entrée [C:\Users\mpignon\AppData\Roaming\ActivePresenter\temp\rl_20190310_192536_lsls7e9th4.wav]
2019-03-10 19:47:21: Impossible d’ouvrir le fichier d’entrée [C:\Users\mpignon\AppData\Roaming\ActivePresenter\temp\rl_20190310_192536_lsls7e9th4.wav]
2019-03-10 19:47:21: Impossible d’ouvrir le fichier d’entrée [C:\Users\mpignon\AppData\Roaming\ActivePresenter\temp\rl_20190310_192536_lsls7e9th4.wav]
2019-03-10 19:47:39: ActivePresenter 7.5.5 (Release Build: 2019.02.21) shut down