This is not the first or the last time when same updates act differently on different machines and as you said and MS has told in blog they are going to fix this issue so this is going to be history very soon.
Yes, there was a similar issue from 19042.868 to 19042.870, W.U. was failing for everybody, then they pulled the update from W.U. and released it again a day or 2 later with a fix.
Time for me to go to bed, have a good day,
I'll catch you later.