Run the project and click any part of the viewer to reproduce the issue.
Actual Result: Toolbar buttons are shown.
Expected Result: Toolbar buttons should be shown only when hovering over them.
As a workaround, execute the following (internal) code in the OnInit event handler:
JavaScriptfunction onInit(s, e) {
DevExpress.Dashboard.Internal.DashboardLayoutModeHelper.isTouch = false;
}