> Michael, what it can be, it is impossible to modify loft object, when I try to move curves,
> it creates cap instead of conect it to point.

It's a bug where the point objects are not being registered as part of the inputs for the loft, so during the history recalculation only the curves get used and not the points.

But I've got this bug fixed up for the next v3 beta now.

- Michael