Fusion desperately needs a "Kill All" function, built as a separate app which you can use when Fusion gets into its "launch lag" (for lack of a better term).
When Fusion crashes often restarting causes a strange phenomena with the Fusion servers where they seem to not know that you crashed, thereby causing this endless launching lag; annoying to say the least, and you can't "pull the plug" to force a hard reboot. Only solution I've found is rebooting my entire computer, which sucks majorly cause often it's running some long-winded Blender render. So then when Fusion crashes and enters this launch lag I am offered two choices, cancel a 30 hours render mid way or not use Fusion until the render has completed and I can restart everything. Needless to say, this is impractical.
Thanks,
Alldaron