Arc in project??

[ekimnamyr]

My project seems to have an arc in it, Made this project with a picture frame around it, Problem is that there is a slight arc from left to right where the rectangle meets the frame, it flush in middle but slightly below at corners?? cannot post project ,to large but did snip a picture to attach, Used vert and horiz domes on the frames if that has any bearing?

[bergerud]

It just looks like the dome is higher than the frame in the middle and so the two surfaces intersect in a curve.

[DocWheeler]

It looks like the middle of the picture has a dome.
Perhaps that was highlighted when you first selected dome at
some point - assuming you did not want the dome in that part.

[ekimnamyr]

AH you were correct I had by accident selected a dome on the carve region, No I wanted it to be flat Thanks guys. my bad..