Assuming no software malfunction...
The biggest challenge I had getting my paper to match the electrons was out-of-sequence entries, ie I made a late entry in the paper books back in the day.
I went through page-by-page, and reconciled each paper page totals with the electrons. That was fairly manageable until I started hitting late entries, because the software put the late entries where they belonged, so I had to try to account for those until I got to the late entry in the paper book, and then remember to "un account" for it. You get the idea.
I've resolved everything except for 0.1 somewhere. I may go on a crusade to find it someday.
But e-logbooks are nice because you can achieve the math precision that employers are coming to expect, and also because you can print and bind a nice clean copy. At my legacy interview they looked at the bound printout, and my paper books stayed in my briefcase (but I had a list of all issues and was prepared to explain it if needed).