Weird, I've been using them for years with no issues in a multitude of bikes with various wheel types. Do you partially inflate the new tube and then push the bead off the rim all the way around to make sure nothing is pinched? Do you make sure not to have any of the inner tube in the way as you initially set the bead? Do you do all the mounting by handing using lubricant on the last bit of the tire if tight?

I will say that I only use Vittoria latex tubes and have no real issues with them.