Should Kontakt retire ?

I have come to the same conclusion. This platform is just too unreliable. I spend far too much time repairing missing libraries. For me it's is like when I had to say goodbye to my old 32bit VSTs. I soon got over that and NI will be the same - a thing of the past unless they get into the modern world. For a few years now I have by default been avoiding selecting any of my NI libraries so that I can write music rather than repair broken software. If I need strings, the last resort is to use my Session Strings Pro 2 - it realy isn't worth the hassle now. There are more reliable modern options available. I will keep K and KK on my system as I have old projects that have used the respective libraries NI and just hope that these work when I call up an old piece of work.