Ok here is the Gopro footage from the drone - 59.94fps (although the audio is 46.87fps- kinda odd - but I am not using the audio) Also I have tested renedring just my main Panasonic camera footage an it ends up being a higher fps too -64fps.

General
Complete name                            : D:\Cottrell Wedding Drone\GOPR3695.MP4
Format                                   : MPEG-4
Format profile                           : Base Media / Version 1
Codec ID                                 : mp41 (mp41)
File size                                : 2.28 GiB
Duration                                 : 5 min 26 s
Overall bit rate mode                    : Variable
Overall bit rate                         : 60.1 Mb/s
Encoded date                             : UTC 2015-04-15 19:53:01
Tagged date                              : UTC 2015-04-15 19:53:01
AMBA                                     : x

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L5.1
Format settings                          : CABAC / 1 Ref Frames
Format settings, CABAC                   : Yes
Format settings, Reference frames        : 1 frame
Format settings, GOP                     : M=1, N=30
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 5 min 26 s
Bit rate mode                            : Variable
Bit rate                                 : 60.0 Mb/s
Width                                    : 2 704 pixels
Height                                   : 1 520 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 59.940 (60000/1001) FPS
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.244
Stream size                              : 2.28 GiB (100%)
Title                                    : GoPro AVC
Language                                 : English
Encoded date                             : UTC 2015-04-15 19:53:01
Tagged date                              : UTC 2015-04-15 19:53:01
Color range                              : Limited
colour_range_Original                    : Full
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709
Codec configuration box                  : avcC

Audio
ID                                       : 2
Format                                   : AAC LC
Format/Info                              : Advanced Audio Codec Low Complexity
Codec ID                                 : mp4a-40-2
Duration                                 : 5 min 26 s
Bit rate mode                            : Constant
Bit rate                                 : 128 kb/s
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 48.0 kHz
Frame rate                               : 46.875 FPS (1024 SPF)
Compression mode                         : Lossy
Stream size                              : 4.97 MiB (0%)
Title                                    : GoPro AAC
Language                                 : English
Encoded date                             : UTC 2015-04-15 19:53:01
Tagged date                              : UTC 2015-04-15 19:53:01
 

And here is the main Panasonic - still 59.94fps:

General
Complete name                            : G:\Cotrell Wedding Pano\132RARH0\01320007.MP4
Format                                   : MPEG-4
Format profile                           : Base Media / Version 2
Codec ID                                 : mp42 (mp42/avc1)
File size                                : 124 MiB
Duration                                 : 7 s 7 ms
Overall bit rate mode                    : Variable
Overall bit rate                         : 148 Mb/s
Encoded date                             : UTC 2020-06-11 23:26:41
Tagged date                              : UTC 2020-06-11 23:26:41

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : High@L5.2
Format settings                          : CABAC / 2 Ref Frames
Format settings, CABAC                   : Yes
Format settings, Reference frames        : 2 frames
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 7 s 7 ms
Bit rate mode                            : Variable
Bit rate                                 : 146 Mb/s
Maximum bit rate                         : 158 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                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.294
Stream size                              : 122 MiB (99%)
Language                                 : English
Encoded date                             : UTC 2020-06-11 23:26:41
Tagged date                              : UTC 2020-06-11 23:26:41
Color range                              : Limited
Color primaries                          : BT.709
Transfer characteristics                 : BT.709
Matrix coefficients                      : BT.709
Codec configuration box                  : avcC

Audio
ID                                       : 2
Format                                   : PCM
Format settings                          : Big / Signed
Codec ID                                 : twos
Duration                                 : 7 s 7 ms
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                              : 1.28 MiB (1%)
Language                                 : English
Encoded date                             : UTC 2020-06-11 23:26:41
Tagged date                              : UTC 2020-06-11 23:26:41

Other
ID                                       : 3
Type                                     : Time code
Format                                   : QuickTime TC
Duration                                 : 7 s 7 ms
Bit rate mode                            : Constant
Frame rate                               : 59.940 (60000/1001) FPS
Time code of first frame                 : 03:02:20;10
Time code, striped                       : Yes
Language                                 : English
Encoded date                             : UTC 2020-06-11 23:26:41
Tagged date                              : UTC 2020-06-11 23:26:41

Have you tried resetting Vegas?

https://www.vegascreativesoftware.info/us/forum/faq-how-can-i-reset-vegas-pro-to-default-settings--104646/

Just to make sure everything's clear...

"It" is Vegas and the speedup happens during rendering?

Or does this speedup happen when you're viewing the finished render?

Thanks, I tried resetting Vegas on opening - that didn't help any unfortunately. No this doesn't happen during rendering, just when viewing after it is finished. I tried removing the clips where it seems to happen every time at about :25 seconds in but that made no difference. So the first :25 seconds or so play ok and then it stops and runs through the whole video in about 20 seconds- like you are seeing your life flash before your eyes (or in this case the wedding). Then the audio continues to play at normal speed for the rest of the video with a black screen because it already ran through the video. Here is a shot of the details of the finished video showing the 2180.50 fps. (If I render a shorter video the FPS is less but still over 59.94 - like 65.40)

Share the file. Post the link.

You could try the s04 disable. Normally you also see the problem on the timeline but I have also had no problem with timeline but the encode went nuts, with video repeating and frames from beginning appearing at the end, but not the same as what you're saying

Hold down the SHIFT key while opening Options > Preferences

Click the Internal tab

In the field "Show only pref containing:" file type "So4" without the quotes

Set "Enable So4 Compound Reader for AVC/M2TS" to FALSE.

OK > Restart

Ok I am uploading to youtube to see what it does with it. And I had already disabled So4 to help with the crashes and boy has it! I tried playing it off of my 4K TV and a fast USB 3.0 SD card and it just stopped at the same point and didn't fast forward like my PC (BTW my PC has a I9 9900k (8 cores 3.6ghz) with 16gb ram on WIndows 10 with an MSI R9 390 8gb card.) So I tried it on my MAC book (also an i9 32gb ram, SSD) and I got to the same point but instead of stopping or blowing through it, it struggled to keep up with the audio and would just stop on a frame for a while and then advance a little. My render Bit rate is set to what it gives you with the UDH 3840x2160 option with 80,000 max and 40,000 average. Could that be too high for these machines? I wouldn't think so.

"So I tried it on my MAC book (also an i9 32gb ram, SSD) and I got to the same point but instead of stopping or blowing through it, it struggled to keep up with the audio and would just stop on a frame for a while and then advance a little."

Source file is suspect if it acts up in about the same place on two different types of machines.

 

Source file is suspect if it acts up in about the same place on two different types of machines.

If they bring the vegas encoded video back into vegas will possibly see audio and video are different lengths, and the standard video players aren't actually playing black, it's filling missing video with black. That was the situation I had

Ok lenard you are right -I brought the file back into Vegas and the video file is only 24 seconds long! Also I uploaded it to youtube and does similar to what my pc does - plays to the point and then flashes through some of the rest of the video.

Here you go

Now as for the source file, It plays fine when I bring it raw into Vegas. So what could be the issue with it? Lenard what did you do with your situation like this?

Now as for the source file, It plays fine when I bring it raw into Vegas. So what could be the issue with it?

No one could possibly know until you:

john_dennis wrote on 8/10/2020, 6:09 PM

Share the file. Post the link.

He doesn't mean Youtube. That is not your source file. Upload to Drive or Dropbox, please.

@Darren-Pyle

"I feel like a noob..."

You deserve a fair amount of hazing from your peers for using removable media as a render target.

As penance, you should investigate why your drive isn't a "reliable connection".

Look for things like:

• firmware or installed software that allows the spindle to spin down for short periods of low or no read / write activity.
• Windows 10 Power Plan that allows all of your hard drives to spin down. The default is 20 minutes.
• etc.

Ha! Did I say it was removable? Well it sort of is - an e-sata external 4 drive bay that I render to all the time as I usually do 5-6 multi-cam projects and the ssd's in my machine are used for the each separate camera to help with preview during editing. I don't think the connection was a problem, or at least it never has been - more the hdd 5,200 drive speed against the 4k high bit rate video. Juts my guess.