Android Question (SOLVED)copy the layout view containing a B4XFloatTextField view from one computer to another computer

Hello everybody
Have a little problem, I am copying a layout that I have on a computer to another computer, this layout has several views (B4XFloatTextField), the strange thing is that when I try to see it on the second computer all the view disappears, I see it the visual designer , but in the preview you don't see

Note: in both computers there is the same version of B4x (10.70) and the same version of the library 2.51 (B4XFloatTextField)