Exported video is just white and without sound

Hi,

as always I tried to cut, compress and then export. The first video > black - no sound and the next one > white picture - no sound. The file size is the same but the videos are useless. I don’t know what happened and what to do?

We don’t know what happened either.
What are your computer specifications?
What operating system are you running?
https://shotcut.org/FAQ/#what-are-the-minimum-system-requirements
What version of Shotcut do you have? Latest is 18.06.02
https://shotcut.org/download/

What file formats are you working with?

We do not know either. This is a useless post. Next time try providing useful information.