[Bunuel Lui]

I got a solution from another forum. I have copied and pasted below what I was advised. The version 2 has problems,it seems. Downloaded Magix Vegas Movie Studio 15 platinum trial version and that solved the problem. The clips are loading and rendering perfectly now. Posting this so that it will help someone having similar problem like me.
Suggestion-
1. The final build version for Vegas Movie Studio Platinum 12 that was ever released by Sony, was build version 1184 (64 bit version).
Go to Help/About in Vegas to find your current build version.
If you are using an older version, download #1184 and install it.
Go to this link and enter your Serial number for Vegas – you will then get the final version released.
https://www.magix.com/us/support/my-service-center/product-downloads/
Now re-test your video.
2. If you still have a problem, download the free trial for Vegas Movie Studio 15 Platinum.
Import your video and see if it works.
My guess is that it will display perfectly OK in this version of Vegas.

[Bunuel Lui]

Thanks for the response Francois, I bought the lumix gx85 recently. I have lumix gh2 also and I have been editing mts video files from the gh2 regularly. They load and render perfectly. This problem is with the gx85 mp4 files. (resolution 3840×2160) Vegas 12 pro does not have 3840 option to begin a project in. So I tried it with 4096×2304 4k and several other options Same problem with all settings. I normally copy the files from the card to the computer and then load it in vegas. I feel it is a problem with the graphics card 550ti. I have no facilities to check and confirm using other cards. Hence wanted to know from the forum. Thanks.