回复：PJ，XBT等专家:H-1 renew approval notice 有误，该如何？

If I understand correctly

1) Your employer filed H-1 extension
2) then you left the country
3) you returned with an I-94 which bears different I-94#
4) then your H-1 was approved with I-94, while I-94# was not the one on your new I-94

You're in good shape.