They compare fine, just I get a PHP error at the top of the page, like this:
Warning: trim() expects parameter 1 to be string, array given in [path]/includes/class_diff.php on line 476

This error should be fixed when we upgrade vBulletin shortly after the move (tomorrow?).

Interesting to note this little issue hasn't been fixed yet. It still shows the correct edits but the top of the page still reads

Wow, is this the problem that's giving everybody an issue?

...Why not actually fix it? I told you months ago that it wouldn't be an issue in vBulletin 3.8.6.

We just need to upgrade, I'm guessing?

and upgrading isn't cheap, right?

hahaha, it's fine, think about it after you come back

Any updates on this? I can't reproduce the issue anymore, but I never could in the first place, either.

Hm, seems like it has stopped. I think something may have been updated.