First it tried the usual combination of 2017-10 Security Quality Update and 2018-11 Monthly Security Rollup, like it tired since I started this thread.
Again, failed the 2017-10 one, but surprisingly, it managed to install the 2018-11 one.
Next up, it tried to install this week's 2018-12 Security Quality Update, successfully, plus a bunch of MS-Office and .NET stuff, all that also succeeded.
Right now, it looks like it's happy and up to date. You've done it again as it seems.
I'll give it another day or so, in case the issues come back, but if they don't, the forum earned it's next donation from me. :thumbsup2: