While generating the heat map for databases having more than 70 tables, the footer of the page gets overlaid on top of the heat map. Also, there is no scroll bar to scroll through the contents.
This issue was resolved in version TDMWeb-18.104.22.168. Please contact the CA Support Team by filling out a new case and requesting this version or later. If you have a later GA, please ask CA Support if this fix is in that later GA version.