I don't know if this is a program bug or a resource bug.
To reproduce:
- Open An Exegetical Summary of Mark 1-8 to a random location (e.g. Mark 6:8).
- Click on any of the commentary acronyms (e.g. AB1).
- Click on the hyperlink on the name of the commentary.
- A bibliographic pop-up appears. The bottom half of the pop-up is blank. Instead, it should include a link to that title in my library.
- The only acronym I can find that this works correctly is PNTC. This shows the expected behaviour.