Autopilot armed in NAV mode and correctly annunciated on the pfd
After passing the first fix the FD temains centered and does not follow the lateral navigation. To solve the issue had to insert a direct to the nex fix To reproduce:
Depart EFHK RWY4R on the NUNTO4C. After passing first fix ( HK416 ) the autopilot dors not follow the route and stays on rwy heading