In the Magix AVC render window try setting the encoding mode to "MainConcept AVC/ACC", then for the frame rate type "30" manually and save that preset. This works fine here.

Thanks Marco! That worked. It rendered at 30FPS.

Originally, I just looked at the available drop-down selection frame rates and thought those were my only options. I saw 50FPS, where I was thinking 30FPS and 60FPS seem to be common frame rates for internet uploads and didn't realize I could manually type in the frame rate setting.

I saved the template and just finished re-rendering the video.....but I'm still seeing dropped frame stuttering. So frustrating when what you watch the video inside of Vegas on a video preview monitor in real-time playback and then it doesn't match what you actually get once you render. What the heck?

Are you sure your source video is 30 fps and not actually 29,97 and only labeled as "30 fps"?

Good question. I'm unsure how to get that answer. I know on the camera I shot it with I selected 1080p@30FPS.

Then I opened those files in VLC player and checked the codec info which said they were 30FPS. When I dragged the files into Vegas I selected to have Vegas adjust project settings to source file. Checked Vegas project settings which showed 30FPS. Unsure how to check any further than that.

On the rendered files, I again checked the codec info in VLC player as a sanity check which showed 30FPS.

I ended up re-rendering the file again and this time around, no dropped frames. I'm really glad it's only a 60 second video. That would have been pretty frustrating on anything longer.

30 fps but actually is 29,97 and only labeled as "30 fps.

I would assume this.

The "stuttering" could be a PC/player app issue. For instance, on a lecture series I edit, a nested title page (white text on black BG) shuddered on fade-out.. but everything else was perfectly normal. After much aggravation and hand wringing, I discovered it was my my PC and combination with the video players .. with the standard Windows Media Player and MPC . VLC and Win 10's 'Movies & TV' were perfect. Playback on YT, Vimeo.. and on other computers (with the same windows media players) were perfect

To add to the confusion, all the codecs in Sony AVC and Magix AVC (Intel qsv and NV) resulted in the same stutter. The Main Concept codec rendered file, did not display a stutter on playback. Neither did renders via HOS as I recall.

A good question.

Most 30 fps is 29.97.

Most 60 fps is 59.94

Some 24 fps is 23.976

The way you will know the true difference:

1. MediaInfo is usually right.

2. If you will count up your true 30p timeline exactly 1000 frames, and the next media frame is a dupe, blend, or interpolation, then the media is really 29.97.

3. You can always consider yourself safe at NTSC numbers (29.97, 59.94 23.976), because worst case, the occasional dropped frame won't get noticed.

30 fps and not actually 29,97 and only labeled as "30 fps.

I would assume this.

The "stuttering" could be a PC/player app issue. For instance, on a lecture series I edit, a nested title page (white text on black BG) shuddered on fade-out.. but everything else was perfectly normal. After much aggravation and hand wringing, I discovered it was my my PC and combination with the video players .. with the standard Windows Media player and MPC . VidLan and Win 'Movies & TV' were fine. Playback on YT, Vimeo.. and on other computers (with the same players) were perfect

To add to the confusion, all the codecs in Sony AVC and Magix AVC (Intel qsv and NV) did this. Main Concept however did not. Neither did renders via HOS, btw.

Good point about the player. After posting my question I was starting to consider that as well. The odd thing for me was that it always seemed to have the dropped frame at the exact same location in the video. Around 28 seconds of a 68 second long video.

To double check it, I had the Vegas project open and VLC Player, playing back the rendered file. So I kept playing back in Vegas around the 28 second area, where I observed no dropped frame. I thought that maybe I did an edit that wasn't as good as it could be, but not edits at that point. Then I kept playing back the file in VLC and always when I reached 28 seconds I would see a jump/drop frame in the video. So since it always occurred at the exact same place while playing it back in VLC player, I assumed it had to be that way in the rendered file.

F'ing video editing. I tell ya, every time I try to do more work with video....I'm always running into things like this where I feel I'm spending more time trouble shooting stuff like this, than actually working on the project I'm trying to edit together.