camtasia 3 rendering poor quality export

In my current project, the Project settings do not enable Proxy Clips, and I am currently looking for the setting for each individual clip. Now I understand the proxy feature relates to smaller clip sizes for 'perfomance-challenged' PC's, and not a reference to network proxy when accessing internet. I just read the Kdenlive manual section about Proxies, here: Am I missing something here? See a screenshot of Rendering dialogue in my post above. In the Render dialogue box, I do not see an option to enable anything to do with proxies. Thanks for the suggestion, but I am confused by this comment. > Have you perhaps turned on the setting that uses the proxy file in the final render? All files are local to this laptop, I'm not using any network connections, so I didn't explore proxy settings at all. I remember proxy being mentioned in the tutorial. Rendering_Settings by Testing1-2-3, on Flickr You mean the settings within the Rendering dialogue? Mostly default, I selected MP4 output. What settings did you use when rendering? > It crashes as soon as you open a clip and many other places. I found the version that installs from the default repository on Linux Mint 17.3 is totally unusable. As at June 2015 it has the ver 0.9.10 of Kdenlive.' 'Sunab offers a stable release of Kdenlive, He maintains a ppa with the previous release here. Using KDE Development Platform 4.14.2, installed on Linux Mint 17.3

Selection_021poorquality by Testing1-2-3, on Flickr Selection_020_original by Testing1-2-3, on Flickrīut after the edited video is rendered, the end result looks poor quality, showing pixelation and a poor range of colours in an area of blend eg the blues in the sky. The original video is 1280 x 720 59.49 fps, and the kdenlive project is HD 720p 59.94 fps. I'll show some still images using a screenshot. Or things I should examine that might cause a drop in the quality of the final rendered video.

Can you please help give some pointers about what I should investigate, to try again. So I'm not sure what key words to use to search for tips and solutions in forums. I'm not sure what I'm doing wrong, or even how to describe it. But the end result is very disappointing. A few clips from a HD water-sport camera. Next - I used some of my holiday footage. This worked very well, and I must say I'm impressed with the quality of both the application and the documentation. My first post, so please help me if I'm in the wrong section of the forum.

Camtasia 3 rendering poor quality export