I have SYNC set, no lead in, no End

In BIAB, Start is 1, End is 32, No Lead In, No Ending

After generating tracks, dragging into Reaper and hit start in Reaper, BIAB does not start at Bar 1.

In one song, it starts at Bar 28 of BIAB VST, another Bar 14 of the BIAB VST.

I have no idea what is going on.