Coldfusion 2021 cflayoutarea - component with name already exists

Want to migrate from CF2016 to CF2021.  Have 2021 developers version with update 1 running.  My site has many cflayout tab areas with cflayoutarea tags for each tab.  These layouts are bound to dropdowns.  When another dropdown selection is made CF returns the following error:

Component with the name tabname already exists.  Please use unique names for all the components.  Layout will not be rendered.

If i remove the name= property in the cflayout then no tabs are rendered, so name is needed.  The page has one name for each tab and worked just fine in CF2016. Coding unique names seems like it shouldnt be needed for each time the dropdown is selected.

Any suggestions?