the rendering crashes after 3 to 4 mn. The format is 4K Prores 422. The final file seems normal but there is no audio neither video after 3 or 4 mn. No problem in 4K AVI format 420
just to add to my post : The original video file is in 4K Prores 59.94.
@Jean-Louis-Dubler I created a 4K-59.94 Pro Res 422 file in Vegas 22-250 (I don't have another convenient source for Pro Res) and rendered successfully in Vegas 23-302 with the machine in my signature.
The files have the following Mediainfo. Please elaborate on where your files originated and tell us more about your hardware system.
Source File from Vegas 22
General Complete name : C:\Users\John\Desktop\Render\4K60 from 22.mov Format : QuickTime Format/Info : Original Apple specifications File size : 58.1 GiB Duration : 7 min 10 s Overall bit rate mode : Variable Overall bit rate : 1 159 Mb/s Frame rate : 59.940 FPS Encoded date : 2025-12-14 15:59:54 UTC Tagged date : 2025-12-14 15:59:54 UTC Writing library : Apple QuickTime Video ID : 1 Format : ProRes Format version : Version 0 Format profile : 422 Codec ID : apcn Duration : 7 min 10 s Bit rate mode : Variable Bit rate : 1 157 Mb/s Width : 3 840 pixels Height : 2 160 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 59.940 (60000/1001) FPS Color space : YUV Chroma subsampling : 4:2:2 Scan type : Progressive Bits/(Pixel*Frame) : 2.327 Stream size : 58.0 GiB (100%) Writing library : magx Language : English Encoded date : 2025-12-14 15:59:54 UTC Tagged date : 2025-12-14 15:59:54 UTC Color primaries : BT.709 Transfer characteristics : BT.709 Matrix coefficients : BT.709 Audio ID : 2 Format : PCM Format settings : Big / Signed Codec ID : twos Duration : 7 min 10 s Bit rate mode : Constant Bit rate : 1 536 kb/s Channel(s) : 2 channels Sampling rate : 48.0 kHz Bit depth : 16 bits Stream size : 78.9 MiB (0%) Language : English Encoded date : 2025-12-14 15:59:54 UTC Tagged date : 2025-12-14 15:59:54 UTC
Rendered File from Vegas 23
General Complete name : C:\Users\John\Desktop\Render\4K60 from 23.mov Format : QuickTime Format/Info : Original Apple specifications File size : 58.3 GiB Duration : 7 min 10 s Overall bit rate mode : Variable Overall bit rate : 1 162 Mb/s Frame rate : 59.940 FPS Encoded date : 2025-12-14 16:08:03 UTC Tagged date : 2025-12-14 16:08:03 UTC Writing library : Apple QuickTime Video ID : 1 Format : ProRes Format version : Version 0 Format profile : 422 Codec ID : apcn Duration : 7 min 10 s Bit rate mode : Variable Bit rate : 1 160 Mb/s Width : 3 840 pixels Height : 2 160 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 59.940 (60000/1001) FPS Color space : YUV Chroma subsampling : 4:2:2 Scan type : Progressive Bits/(Pixel*Frame) : 2.334 Stream size : 58.2 GiB (100%) Writing library : magx Language : English Encoded date : 2025-12-14 16:08:03 UTC Tagged date : 2025-12-14 16:08:03 UTC Color primaries : BT.709 Transfer characteristics : BT.709 Matrix coefficients : BT.709 Audio ID : 2 Format : PCM Format settings : Big / Signed Codec ID : twos Duration : 7 min 10 s Bit rate mode : Constant Bit rate : 1 536 kb/s Channel(s) : 2 channels Sampling rate : 48.0 kHz Bit depth : 16 bits Stream size : 78.9 MiB (0%) Language : English Encoded date : 2025-12-14 16:08:03 UTC Tagged date : 2025-12-14 16:08:03 UTC