"Highlight critical path" switcher not available

@Павел_Мелькин - thanks for confirming. The fact that others (well, I) see this in their environment and you don’t, despite having a very similar setup, suggests that this might be a local bug. You can follow these steps to create a support ticket with Asana. Be sure to give them as much info as possible to accelerate the solution (e.g., project URL, screenshots, etc.):