It looks like a short shot.
If you open the report txt file there should be an indication there of the short shot.
You should also have a look at your max injection pressure vs the pressure plot (it will give you an indication whether a short shot occured)
Maybe try to change process parameters e.g. Injection Pressure Limit in Fill Settings. Also be sure that filling time is set in auto option.
You could also use "runner balancing" function to calculate optimal sprue diameter of runner system. The video below could be helpful for you.