The array elements that the Contour field expects for an annulus ROI are:
[X, Y, Min Radius, Max Radius, Start Angle, Stop Angle]
But you're only giving it an array of [X, Y].
Instead of rebuilding the ROI cluster manually, try using the VI "IMAQ Convert Annulus to ROI". Use the X, Y location of your first fit, and whatever min/max radius works, then wire the output to Find Concentric Edge.
If you want to create an ROI for the Find Straight Edge, you could use "IMAQ Convert Rectangle to ROI". Use the center point of your first fit and add/subtract values to select your Left/Top/Right/Bottom positions.