speed effect works in preview, after render video freezes wherever speed effect was used.

Hello!
I've been using kdenlive for a long time now, its always worked great for me, but this has got me stumped.

I run Linux mint version 14, kdenlive 0.9.2 is the version in the repo. I always had crashing issues with that version so I updated to the latest git version about a month ago. Worked great for months.

But all of the sudden the speed effect is acting up. I take my video, cut the pieces I want sped up, move those little clips into a separate video channel, apply speed to each of them, set the speed to 300% and everything looks great in the preview, but when I render the video at every point where there should be a sped up section there is a super slowmo clip of the beginning of the video. Like literally under 1fps.

I'm confused and frustrated.
I figure it has to be fairly simple, but I'm tired, confused and want this video edited and done already.

Hope someone has some ideas for me,
Thanks!
Tom