I am new to BIAB. I just entered the chords to Autumn Leaves. For the A part I used 1 and 2 endings. For the B part I entered all 16 bars. In song settings I unchecked generate 2 bar ending. I saved and when I reopened it a bar 33b appeared. The bar contains the last chord in my b part. What feature do I have to turn off to prevent this?