Bubble int he lure lock - anyone else?

Any luck with the tslim bubble issue? I got mine last week and to be fair won't have my training until this Friday, but watched step-by-step videos on how to do a site change. My first try seemed OK but noticed the big bubble in the luer lock. Did a site change Saturday seemed to prime air bubbles forever. I ran 180-250 and switched back to my Animas Sunday evening. I'm 6mos pregnant and can't risk running high due to air bubbles or pump issues. Like I said, I won't have my training until Friday but am concerned about the air bubbles issue as a lot of people seem to have this problem.

Jenni