I have now installed latest available version of T4 System Plugin 1.1.7 and have in summary identified three issues:
1- Off canvas menu is always visible and cannot be hided
2- Advanced Custom Module called ' Countdown ' on section-1 is now partially overlapping with module 'Slideshow Events - Top' on position 'slideshow'
3- Advanced Custom Module called 'Kontakt Information' on section-10 Type Contact Info : style-1
I have provided login credentials for user 'support' with Super User rights