Hamburger Menu and Edit Record don't work for WebApp
There is an app for the web with 10 pages.
The third page ("persons") is a TabView with 2 canvas sections and 1 form section.
Suddenly (no idea what change that caused) the Hamburger menu (a) and the "Edit Record" (pencil) (b) no longer work on this page.
(a) You can get to all pages, but if you are on the third page ("persons"), then you can not get to any other side.
(b) When I click "Edit Record" there appears no "Save Changes" symbol.
Where could I look for this error?
Thank you
Georg