Next update (v 3.6.65) will fix this going forward (you’ll need to delete current broken bible readings though).
The issue was that although biblegateway.com is a US site, it doesn’t recognise US style Bible reference rendering š
It accepts “1 Chronicles” but rejects “1st Chronicles”.
I had a function that corrected all the different English renderings to a form it understands for the link, but forgot to use it for Bulk Bible Reading Publish.
FYI all the renderings I could think of for “1 Chr” are ‘1 Chronicles’,’1 Chron’,’1 Ch’,’I Ch’,’1Ch’,’1 Chr’,’I Chr’,’1Chr’,’I Chron’,’1Chron’,’I Chronicles’,’1Chronicles’,’1st Chronicles’,’First Chronicles’