Avidemux problem V2.6.1

[Bikeurs]

Here is my problem, I put a one-hour video into the software, the minute 3 there is a black screen 2 seconds. When I backup my entire video, it is only 3 minutes from start to black screen located at minute 3.
How to fix this?

[Jan Gruuthuse]

Could indicate there is some kind of error in video content. Put video in avidemux to timeindex 00:02:45 and play it from there. If it plays over that 3 minute in avidemux it should be ok?

[Bikeurs]

When I put the video after 3 minutes so after the black screen until the video is the next black screen.