I think I figured it out. I spent about 30 minutes with my new card reader. The trick, at least for me, is to slide card through and then back through the reader. I should say, not completely through so the card comes out of the reader, but just til you can feel the pressure release as the card come out of the mag stripe reader mechanism, then pull it back through. It seems to work about 4 out of every 5 times this way. It's worth a try.
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