Freehand tool issue

[FRANCESCOLEANZA]

Hello,
I have a problem with the freehand tool with Arcgis Pro 3.2: when I draw a polyline or a polygone, the features were smoothed automatically in beziers curves. 
Since I'm tracing an orthophoto of an archaeological dig, I need the line to remain as faithful as possible to the mouse path, but I don't understand how to turn off the beziers curves. 
I also tried the stream tool but it don't work for me... 

Furthermore, it often happens that after double clicking the drawn line disappears, as if I had not made any changes.

Any help is greatly appreciated.

[Robert_LeClair]

In the Help documentation for "create a freehand polyline feature" it states in the last sentence that "the segments are automatically converted to Bezier curves."  I don't believe there's a way to modify this item with the freehand tool.  You may want to find another polyline construction tool that accomplishes the digitizing workflow you wish to see.