Cubase 12 wont shut

latest Windows version, running on Windows 10 fully up-to-date.
No issue with using the program but it refuses to close.
Happens a lot.

Why?

When this happened to me I noticed that the license service task was running on task manager.
When I manually kill this service on task manager then cubase immediately quits

Thanks. Yeah, that’s what I’ve been doing, but this is not the correct way of closing a windows program so shouldn’t be needed.
It seems to happen more if CB has been open for a long time.

I’ve experienced this a number of times too. When it happens here I have to reboot as Cubase doesn’t ‘release’ the ASIO driver and throws an error on subsequent launches.