I observe for one PDF file that the text selection and text highlights are shifted vertically down:

https://s3.amazonaws.com/zotero.org/images/forums/u265723/8qt029zal540xyuohqt6.png

https://doi.org/10.1016/j.expthermflusci.2022.110743

It is working properly in PDF.js:

https://s3.amazonaws.com/zotero.org/images/forums/u265723/byttgvwjcow4e62gzu0f.png
https://mozilla.github.io/pdf.js/web/viewer.html

[PDF file sent to support@zotero.org.]