I have windows 10 and the customized video is being blanked after export and also, the original is being blank too. I have to refresh it all the time, but the main issue is after rendering. The sample video that came with the twin motion is not affected.
Thanks for replying to my request. I am sorry for getting back to you so late. I have been very busy and trying in the meantime to solve the issue but I could get a better result neither on my desktop nor on my laptop. I needed more time so I can come up with something. The thing is that I tried and I couldn't that media player fixed. I just purchase a laptop that will come with Windows 11 and I hope that the problem will be solved. I attached some screenshots as attachements.
I came back to you because I solved the problem and would like to share it with you. I got my new Laptop that came with Windows 11 and after trying to render an MP4 file in Twinmotion, I run again into the problem of having a blank rendered video. I understood that the problem would be somewhere else so I start playing around and realized that the MP4 file is disappearing and that what is rendered is just the background. So I decided to use the sample video that comes with Twinmotion. This is what I did:
step1: place the sample video
step2: Use the material picker to edit the sample video
step3: Left click onto open different options and chose open