Images in header positioned incorrectly in 5.18.5

  • I've updated to 5.18.5 from 5.18.3, and now images in my headers are not aligned properly. They are configured to align as character, and they used to show up with the bottom edge aligned with the bottom edge of the text as expected. But with 5.18.5, the bottom edge is pushed way down.

    Note that this only occurs in the header... still aligns fine in the body (didn't test the footer).