Synchronize video with EMG signal

I added a synchronized video to a subject folder but it is not synchronized with the signal recorded.
There is an offset of 10s between them.

I checked and they are synchronized on my EMGsoftware that I used to do the recording but not in Brainstorm.

Is there a way to solve this problem?



I guess you can use the "set start time" for that. you can check for more info.