It sounds like a forward rotation of the pelvis (right side more forward relative to the left). I’ve had left SI Joint problems, which in turn caused a bunch of hip and pelvic distortions, and I’m pretty sure I’ve dealt with the rotational dysfunction(?) that you’re describing. The right glute inactivation is consistent with a Right on left rotation of your pelvis.

Try to complete this quick routine and see if it improves your condition. If it is indeed a pelvic rotation, it should instantly feel better as you progress (especially right after the first two exercises).
http://www.davedraper.com/fusionbb/fbbuploads/1208713148-Addressing_Pelvic_Rotation.pdf

While any lumbar rotation would probably sort itself out upon correction of the pelvis, and maybe some foam rolling and mobilising of the low back, you’ll have to work a bit harder to fix any femoral issues, which are likely present. I’m not quite sure what exactly you could do, however I think you may benefit from just going through the various banded distractions (mainly the lateral and posterior) that Kelly prescribes to help open up your hips. For me, personally, I had to focus heavily on doing some of the distractions shown on this presentation, before I was able to get any benefit from those shown in Kelly’s videos. I was able to do the lateral and inferior glides on my own using some bands.

Anyway, I’m not a doctor or a therapist, but just from my experience treating my own injuries and imbalances, I do think that you will find your condition improve fairly quickly after doing the routine that I posted in the first link. I hope that helps!