Thank you for trying the steps, and if you have already performed the steps from this article, but the issue not resolved. Our development team has been advised to carry out the following solutions one by one and check if the real time scanning could be enabled.
1). Check in System Preferences > Security & Privacy > Privacy > Accessibility to remove or disable 3rd party accessibility software such as the Better Touch Tool or MagicPrefs. 2). Go to System Preferences > Security & Privacy, and select the General tab. 3). Click the Allow button.
1). Check in System Preferences > Keyboard > Shortcuts > Full keyboard access to enable full keyboard access. 2). Go to System Preferences > Security & Privacy, and select the General tab. 3). Use Tab -key to move the focus on the Allow button 3). Press Spacebar from your keyboard while the Allow button is active.
Add F-Secure Team ID (6KALSAFZJC) to the list of approved kext developers by using "spctl kext-consent" command in the Recovery mode. Refer to the following page for more detail information.