comodo dragon not closing in secure shopping feature

I have windows 10, cis version 12.1.06914, and comodo dragon Version 83.0.4103.116 (64-bit), when I use Comodo Dragon in Secure Shopping environment, it does not close whether I right click on the tab on the taskbar and select “exit” or in the top right hand corner “exit” I have to literally get out the Secure Shopping by completing exiting out of it. Yet when I use Comodo Dragon on its own it closes after a few minutes. thanks for your response.