Yeah, the whole point of flipping it is so that R2 is moving in the same direction in both shots. I guess Ady decided that was more important for the flow of the action than R2’s holo projector being on the correct side.
I think what adds to the confusion again on another level is this.
Lobot version.
Citizens uprising version.
You can only have one or the other. But we have a mixture of both. Assuming lobot was cut and then they shot the alternate shootout that we see bits of. Or even vice versa.