Definitely return it -- it's a problem that should not be there. Or, as stated above, if you afford it, just wait till other leather backs are available and swap it.
Thanks guys. I'm thinking of returning it or asking for an exchange. Curious if anyone else has anything similar. I sent a DM on Twitter to LG to see what they say too.
I could just wait and get a new back when I need one... I'm gonna keep it naked anyway.