2 instances in the profiler but 1 script

My singleton toucheManager update() function is called twice. The script is not doubled but in the profiler it says “2 instances”. Other scripts are also doubled and in the profiler it says that there is two instances.
140132-profiler-two.png
When I click on “EventSystem.Update()”, the canvas in the Hierarchy window is illuminated. When I click the second “EventSystem.Update()”, the same object is illuminated. For some reason, the Update() is called twice by the same object on the same frame.

Do you have any clue of what is happening?

mChapuis : Did you find out the answer. I got the same problem.
In my case, problem appears after I install the URP package.