a series of IAT

Hi

I'm programming a series of three different sets of IATs, but I want them to all be in a single csv file with the option of randomization between groups. It is essential for my study that the IATs could follow one after another. So I started programming each set of IAT separately and then combine the three of them. When I tried to run the combined version of the IAT, the graphic labels of categories that I made for each set were mismatched. I wonder is there any way to fix this?