Hello, and so sorry :(to hear about your Pleo problems, esp being brand new. It does seem there are an AWFUL lot of problems popping up with these RB, which is very troublesome, It worries me greatly. I dont remember hearing about this many problems with the original Pleos, I wonder if they released them too young or needed to have a wider study group with more than one or two people testing them out before release to the general public.
It does sound as if this is a motor problem with the leg which you are not going to be able to solve on your own or with anyone here on the forums, esp since you say it is also hot! I would contact INNOva and describe the problem to them, It seems to me that they should reimburse you for shipping costs as well, but maybe that is not listed in the warranty, I guess I should see what it does cover. Pleo Rb is quite expensive and this is something that does sound like only they can fix, probably sending you another one is my guess. I do hope you hear good news from them on your Pleo's leg problem, I will be thinking positive good thoughts for you to get this Pleo Problem resolved.
Best wishes, RedwoodsMama