Most of the indexing in GA L1440 has skipped several images backward from the actual pages they index.
The recent indexing for 1Cor. at the beginning is OK.
Image 1630 (82r) = 1660 (has moved backward 3 images) which applies to all images up to 1910.
Images 2400 (120v) = 2450 (has moved backward 5 images) which applies to all up to 2440.
Images 2490 (125r) = 2540 (has moved backward 5 images) which applies to the end of the manuscript.