Problem with sequencer

Hello. I suddenly had a problem. I guess I accidentally put the wrong tick. And now when I change the beginning or the end of the secession, then when I re-enter it, the values are reset to zero. That is, if I set the beginning or the end with any frame, then if I went out and went in, the beginning again goes with 0. What do the guys do? Tell me please!

Oh, I figured out the problem! Super! I accidentally ticked - Keep playback range in section bounds :slight_smile: