assistive touch volume iOS 11.2.1

Hello.

On iOS 11.2.1

The volume setting in the Assistive Touch does not coordinate with the volume adjustment when using the buttons nor when using the swipe up control panel.

Also, if somehow the volume in Assistive Touch is muted and I turn off Assistive Touch, then there is no way to adjust the volume without re-activating Assistive Touch again.

Volume controls should be the the same regardless of how it is changed.

Please fix.