eBird import fixes
At some point in the last week or so, eBird changed the name of the column header containing species comments in both their Checklist and MyData export formats. This broke Scythebill, which relies on those column header names to find the data.
(Scythebill should also have given a better error message than it did, instead of just saying the .csv file might not be valid.)
This has been fixed, so new files (and old files) should import cleanly.
Multiple Observer improvement
Scythebill added support for recording sightings for multiple observers in a single .bsxm file back in 14.0.0. If you've never seen it - and want to use it - you can check out the section in the Scythebill manual that explains it. (If you don't need this feature, don't worry about it - it's well-hidden, and none of it appears at all unless you go to the Scythebill Preferences page and turn it on.)
New to 14.7.4, though, is a quick way to toggle between those observers for all the reporting Scythebill gives you. Now, just to the right of the Taxonomy chooser up top, is an Observer field, where you can pick a single observer:
As soon as you've done so, all the sightings will automatically be filtered to just that one observer - whether you're in Show reports, Browse by location, Browse by species, any of the Special reports, or even the "Remembered" reports whose totals show up on the main menu page. You can always leave it blank to get a report for all the observers in your file.