Time Out may have ocurred diring the scanning with (all Arturia Vst) Cubase 9.5
what is this?
check the image
Either the plugin froze during scan or it’s displaying an error message.
Click the Cubase icon on your Windows taskbar and see if there’s a window hidden in there.
I have found that that Alert message is very “keen” to kick in! Usually, all you have to do is be a little bit patient… it will complete scanning eventually, and the alert message will go away 
I will add that all my Arturia Plug-ins take substantially longer when scanning than most other plug-ins.