As for eReader, eReader is an old obsolete format. But that still doesn't explain th OP's issues. There is definitely something wrong with the eReader version.
Thanks, Jon. I don't necessarily agree with obsolete, though there's no question it's old. For what it's worth, I downloaded Losing the Peace last night, and it's much better than the others, and I read Unworthy when it was newer, and don't remember any problems with it. I haven't heard back from Ereader yet on the more recent releases that I've had trouble with. Maybe it's time to bite the bullet and switch to Kindle format, even though it'll likely cost me more.