If you want the ABC section to take up the entire width of the page, add %%stretchlast to the abc block. Then abc2svg will expand it to take up the entire width.
As far as the second problem, that's something I actually already fixed last week. So the fix will be included with the next update. The issue occurs when a page wrap occurs but the only thing on the next page is an ABC section. The code was not accounting for that and did not process the next page unless there were lyrics/chords/etc that needed to be processed. So if you put something after the abc section (even a single character), that would function as a workaround.
Mike
As far as the second problem, that's something I actually already fixed last week. So the fix will be included with the next update. The issue occurs when a page wrap occurs but the only thing on the next page is an ABC section. The code was not accounting for that and did not process the next page unless there were lyrics/chords/etc that needed to be processed. So if you put something after the abc section (even a single character), that would function as a workaround.
Mike