Because the Daniel commentary did not download, I downloaded the file manually and scanned for it. In my resources folder, the Calvin commentaries are .logos4 files apart from the Daniel one (.lbxlls).
Some volumes are .logos4 and some are .lbxlls across my library. Any rationale for this? Does it matter? (Natural concern is the logos4 format is "newer" and we might be missing out some features with the lbxlls files!)