Starting field position and holding penalties

to preface this.  I only play offense and have the system sim defense. That being said it sims when the other team punts and does kickoffs

now, I can’t count how many times I have started on my own 1 yard line. Not even sure how that is possible to do as was in one game every time the other team punted. Of course I will run a running play and about 6 out of 10 times I will get a holding call which somehow results in a safety. I don’t understand that either. It is very frustrating. 
Honestly the amount of holding calls I get is unreal and they seem to only happen when I have a play of positive 5 yards or more.

 Is anyone else experiencing this