I am in the finale stages of preparing maps for my new deployment in HM and every time i open a floor plan, all of the APs are bunched up in the top left corner and the heat maps don't work.I've tried on several different computers in Firefox and IE.
You have to unlock them and manually place them in their proper locations. Has this been done? If not, scale the map first. Then look for a unlock tickbox and untick it. From there, you can move the APs where they need to be.