Push element error

[adilek]

When the user wants to build a circuit with several push buttons, he/she may observe the
button being pushed, even when the user does not press on it. For example, one case is when the
user wants to build a simple circuit consisting of one bulb, one “AND” gate connected to the bulb
and two push buttons connected to the gate (see the picture below). When the user changes the
position of buttons, putting them under each other, it sometimes happens that the user actually
pushes two buttons at the same time. Sometimes, the button keeps being pressed, even when the
position of the button is changed and the press is released.
https://trello.com/c/fSXMWpe2

By:
ADA University, School of IT and Engineering
Instructor(HCI): Rashad Aliyev
Students:
Heydar Gerayzade
Leyla Bekerova
Nigar Novruzaliyeva
Narmin Orujova

[adilek]

Push element error