Thanks for the update and sorry for the inconvenience.
There a maybe a codec conflict which could be causing an issue. It is quite hard to know without seeing the file in question.
Before you try this solution, please make sure your mixes are saved.
What I would recommend to do is:
Stage 1. Clear the Cache:
To do this, firstly close all mixing screens and click on Tools/
Then click on Remove all files (See attached images).
Once all the files have been cleared, close down trakAxPC.
Download and install the full version of the latest K-lite Codec pack.
This codec pack is latest version of all the codecs that you need on your
PC, it also fixes any broken or corrupt codecs.
Make sure you select all the audio and video codecs in the the set-up
except the “non recommend option” at the end.
Reopen trakAx and now try and bring in the file you are trying to mix and export it,
Hopefully this will sort out your issue, if not please do not hesitate to contact me with any questions.
If this continues after the following stages are completed,
Would it be possible (if not too much trouble) to send me the video that is causing the issue.
If it’s large, you can use dropsend - http://www.dropsend.com/ and send it
Again sorry for the inconvenience, I hope this helps and I look forward to hearing for you.
Click thumbnail to see full-size image