I am just trying to use simple boundary surface command where 2 arcs intersecting each other but for some unknown reason I can not do that in 2019 SW  whereas I have been using the same profiles and can do it in 2018 SW. Anyone can shed some light upon it please.

I am attaching Test 2018 SW part file and error message picture  showing in SW 2019.Could anyone please find out or suggest whats wrong going on here?