When I first put them together, I did observe the supposed male climb on the back of the female and initiate amplexus.
I believe that this is a female (though it appears to have larger toe pads):
I acquired this animal as a presumed male:
Together (at dusk):
They do have me guessing. Thank you for your help!

I believe that this is a female (though it appears to have larger toe pads):


I acquired this animal as a presumed male:


Together (at dusk):


They do have me guessing. Thank you for your help!