Matomo freezes after Update to 3.12


Since the update to Matomo 3.12, some users have reported that Matomo freezes for a long time after each click. Working is no longer possible. This behavior is in the affected clients in every browser (IE, Chrome, Firefox etc.).
Internet Explorer sometimes reports after a click that a script cannot be executed. Unfortunately it is not possible to understand which script triggers this message.
We thought this may be related to a specific widget, but the error also occurs on an empty dashboard.
Does anyone know the behavior?



Could you check using the browser developer tools if the clients are waiting for HTTP requests that take a long time or if the Javascript in the browser itself is slow?