LOL, Indies / self-pubs have no monopoly on ebook design problems. IMO, it's mostly over-design and verbose templates.
Before reading any ebook, I regularly strip all the formatting, remove the fonts, and set a vanilla style sheet.
These days I've found even big pubs have more typos & copy-edit problems than books published before the 2000s.
But in the main, yeah, editing can be a problem for all books, all publishers.
In any case #YMMV