I shoot in 60i 30i and 24p I render out in all kinds of formats without a problem. I use 264 YouTube 720 for youtube and many of the 'canned codec's / encodings' You are Pre rendering your workspace...Not sure if that matters, but I always do. *Note your dialogue box when exporting has some boxes to check or uncheck as well. Maybe if you were to screen Grab your Movie's Render options we could see if there is a box checked or settings etc.
When you drop that movie in the TL it will ask if the settings do not match "Would you like to change the TL settings?" Yes. As PP should be able to export in any format you are going to need and if pre-rendered and looks good in (FULL) view in editing it should come out fine. Are you seeing your movie in Full view or Half ? I could only guess....How much RAM do you have? Do you have enough to handle the load or is that the prob? Are you editing in 50% playback and then when rendering out you are noticing a performance lag?
Fixed the download problem, the mime setting would not allow mts files.
I shot a clip (1080P - 60fps) of some panning / zooming and tried to render it out using the default setting for 264 - High Quality but unless I render it out as 60P is jerkey / blurry during the pans.
What exactly are your Sequence and Export Settings?
I have zero experience with 59.9401 fps media...
sorry if I'm not much help.
I shot a clip (1080P - 60fps)
1080p/60 is kind of an oddball format best used only when you intend to slow it down in post production. You can't put it on DVD or BD as is, and many web sites will 'downconvert' to 30p anyway, so I recommend shooting all your 'real time' footage in one of these three BD/Broadcast standards
and saving 1080p/60 only for slow-mo shots.