Freesound has now been updated to 6.0.1. This fixes ProTools automation problems when the windows are closed, ProTools parameter collisions between the various Freesound plugins, and automation problems with certain VST hosts (Nuendo and Cubase).
Windows users will need to unistall previous versions of Freesound before upgrading. Mac users will need to delete ~/Library/Preferences/DAE Prefs to force ProTools to rescan the plugin database.