i only have experience with marks adaptors, but others may have the same issue. you will need to make sure they are completely seated and torqued. mine went on hard enough that it shaved metal off the inside of the adapter going on the first time. and same putting the wheels on. very tight fit.
put them on, drive around a very little bit, torque the adaptor again, and repeat again after 5-10 miles. there might be a better way to do it, but it took a bit too get mine seated right. still takes a bit of kicking to get my tires off.