Phone vibrates on showPopup

My phone vibrates 4 times when I use the Rho::Notification.showPopup() on Android. Can that be disabled?

Rhomobile 6.1.latest

Android 8.0

minSDK: 26
targetSDK: 28

Using following code in Ruby:

alertSettings = Hash.new
alertSettings['message'] = Localization::CourseWalk_controller[:load_ge]
alertSettings['title'] = Localization::CourseWalk_controller[:please_wait]
alertSettings['buttons'] = [Localization::General[:cancel]]
alertSettings['type'] = [Rho::Notification::TYPE_DIALOG]
Rho::Notification.showPopup(alertSettings)