Hidden, editted activity in gant view blocks switching to something else

Hello

Following can be reproduced in the Demo, logged in as manager.

If the gant view is selected

Minor issue in Switched mode

    If gant is selected, the arrow at the bottom is almost hidden
     
    
    Affter switching to selection and back to gant the arrow is where it should be.
     
    

Major issue in "list is left" and "list top" mode

How to reproduce the issue:

1) Selected something or generate something new (e.g. an activity)

2) Edit any of the fields ( e.g. input some text in description)

3) Hide the open topic
 

4) Switching to anything else (ticket, activity etc.) is not possible anymore becasue changes are pending (ok). But showing the edited toppic is only possible in the switched view with the small arrows.
In the case of "list left" or "list top" mode unhiding of the toppic is not possible anymore...