I have found this to be as in the title with mint mark AQP Dot, II in left field. Comment and corrections welcome. Thanks for looking.
As long as the size is similar (weights vary widely with these issues), I'm inclined to agree with you. The listing for RIC 215 shows a star in the right field. I've never seen a fallen horseman with a field mark in the right field, only in the left. Could it be referring to that little blob after the O in REPARATIO?
for this issue, the star is actually more in the center; which you can see on inspector's coin. I have attached another example for comparison. So not so much in the right field as just plain old right of the II...the crowded field left little room.
Wow, I am surprised I have a Constantius II Fallen Horseman! I don’t specialize in LRB’s... Great job attributing yours, @Inspector43 . Nice looking LRB. RI Constantius II 337-361 CE AE 2 Soldier spearing downed horseman