Ah yes, that's disappointing, but it happens. I had certain times submitting variations of an image eg. 2 shots of a historic ruin but one is warm tone and the other was a cooler tone. One reviewer got it at the same time as the other, and both rejected it as "please submit only one image" or something like that.
I guess the only thing to do is to resubmit it later down the road. The only bad thing is you get hit on your approval average.