I am trying to install a plugin from a .p2f file using File → Import → Install → Install Software Items from File. The plugins listed are automatically selected by default.

If I click the Deselect All button to clear the default selections and then try to select only the plugin I need, the behavior is not as expected. When I click on the required plugin, instead of selecting that plugin, it selects all the other plugins and does not allow the intended plugin to be selected.

However, if the user performs an additional step—such as manually deselecting all the plugins again or clicking the Deselect All button once more—and then selects the required plugin, it works as expected.