Oh wow great, so now both of us are doing exactly the same thing; format the Mac entirely, clean install the OS, and then install the latest version of Largo. So happy to know that I’m not the only one

I of course know above procedure of clean installing everything is sometimes taken to solve the problems with software apps, but in this particular case it is NOT an ordinary one.
Why?
I tell you why.
The problem is that because the old version Largo blocks Time Machine to successfully finish, and won’t allow the Time Machine to work and finish completely, and forces Time Machine to abort, you have to MANUALLY back up your User files, not just the ones that are in the User folder but all the ones that are automatically scattered across the Mac by all kinds of installers! How can I figure out which one is where? Honestly this is insane.
Sadly there is no other option so I had to give up some of my own creation, pickued up as many data that I made as possible, manually backed up them by old fashioned drag and drop to my backup storage drive, then format the Mac, and clean installed the OS.
Before I started this thread I did ask Waldorf Germany via email about Largo causing functional conflict with macOS 10.13, but they gave me no reply no matter how long I waited, which is unusual for them; they always used to reply within a day or so. Hence I had to ask you all by starting this thread.
I also consulted with the Japanese distributor and they said these are just documents that won’t cause any troubles as I mentioned in my previous post.
Because of all this, so many hours and days had passed with me trying to narrow down the real cause with Apple support people, before finding the latest version Largo released with remarks saying that Time Machine issue and the Preset folder issue has been solved with it.
Yes I’m so happy now
Now I do would like to see Waldorf to develop the uninstaller for Largo, and do hope it will work smoothly without any problems. Honestly they should have done that before fixing the Time Machine conflict bug on Largo, since if they did then I had no trouble backing up all my User data with clever Time Machine, and didn’t had to give up some of my precious creations.
Set your priority correct, Waldorf!