When I cut pieces from the middle, shotcut automatically trims the Intro

Hi there,

I’ve used Shotcut for the first time to edit and cut pieces from the middle of my video. I thought it was done and so went ahead and exported it. But when I played it back, the intro was trimmed, so speaking starts mid-sentence.

I went through the process again and cut the middle pieces again then checked the beginning before exporting, and it’s automatically clipped off the start of my video for about 5-6 seconds!

Why is it doing this and how can I fix it?
Thank you