In low light my camera can switch to a mode when two exactly the same frames stored twice (I'm able to switch it off).
So technically speaking it is 30p instead on 60p. But 60p container (in media info I see progressive 60p).
I think you should double check if this is not the case for your footage.
Good point as my Canon can go down to 1/6 sec shutter speed which gives four identical frames at 25 fps.
But there's something more at play here. From Vifa's video you can clearly see the project is 50 fps yet the timeline counter on the left is ticking over to the next second after 25 frames.
On investigating further it could be that the Time display Time Format is set on "SMPTE 25 fps" instead of "Time & Frames". I've only VMS15 to look at but assume Vegas Pro is similar.
Former user
wrote on 6/17/2018, 9:01 PM
But if you watch the counter of the timeline at the bottom, it thinks it is only moving one frame. Try setting your project for 25fps and see what that does.
I tried changing the "Deinterlace Method" to "None" - it did nothing.
Then I tried changing the "Time Format" on the timeline. It helped on the counter that now ticks over to the next second at 50fps, but it did no difference while I stepframe.
How can I check my footage and what should I look for?
I also tried to undersample with 0.5 - but no difference.
I do not know how it is possible.
RMB | Properties, specify 'untersable rate' as 0.5 (instead of 1.0), pressed OK, then put cursor onto the event you just modified, hit Alt + Right Arrow key a few times and look for see frame duplicates in preview (set it in Best | Full).
I don't know if the footage is decoded by anyting - but I don't think so. The footage comes directly from my GoPro.
For Vegas to display and edit the video file from your GoPro, it has to decode it and Vegas has several decoders depending on the footage. Read this. I am not saying it will solve the problem but worth a try. Also, upload a short sample to Dropbox for users to download and see what is wrong.
Thank you for the sample. Unfortunately that is not a good sample. You are recording two screens which for sure are not displaying 50fps. Do you have anything with objects or people moving?
The file is 50fps but you have frames duplicated so effectively it is only 25 fps.
Former user
wrote on 6/18/2018, 7:02 AM
I imported the footage iinto a 50fps project and it works fine. Each frame forward the shot moves. this is in Version 12. IF I change it to 25fps, it still works as expected. But if I set deinterlace method to NONE at 50fps project, then I get the stepping that you are getting. At 25fps project it works fine. so, as I suggested earlier, set your project to 25fps.
The file is 50fps but you have frames duplicated so effectively it is only 25 fps.
So you see the same as me? - that only every other frame is changing?
I imported the footage iinto a 50fps project and it works fine. Each frame forward the shot moves. this is in Version 12. IF I change it to 25fps, it still works as expected.
Seriously? .. This makes no sense to me. Why won't it work in my project 😩