A Synchrosoft Dongle (for the Miroslav Plugin) was not found on my system when I tried to open the Plugin.....apparently that USB Port was not live or something.
I clicked "ok" the dialogue box thrown up by the plug (suggesting i re-authorize, etc.) and Logic promptly crashed with no save.
Shouldn't be allowed.....grrrr
Dongle Users, beware...and send a complaint email to Synchrosoft if you never want it to happen to you: