I am at the "build a site selection model" exercise of the course. In step 3, we are asked to add the Append tool with ResBuff, ParksBuff, and Flood Plains as inputs. The output should be Unsuitable. At first there was an error because Unsuitable did not exist. I ran the model that included the create "Unsuitable" feature class. The Model was colored, but an extra blue "Unsuitable (2)" input was added. Unsuitable (2) should be the output. I deleted the auxiliary input, but the append tool was back in white. i have deleted and re-added both Append and Create Feature Class separately, and together and no matter how I enter the data, the same problem exists. i am at a loss on how to make my Model look like the tutorial. Any suggestions would be most appreciated.