Why I keep loosing settings ?

Need details of what was and is now installed…

Honestly, people should kind of forget updating anything from NI when you have things working. macOS will at some point force you to do this, i'd advise of maintaining a backup before updating.

Likely the issue is not KK itself but if you used Kontakt it's probably an issue there since if you update some of the kontakt libraries that are now designed for the latest Kontakt, they wont work on older versions and it is also an issue where the new Kontakt doesn't work in projects where the previous Kontakt versions were used… Pretty cool eh.

I stopped using Kontakt as much as possible a few years back for these kinds of reasons. I flattened old projects or swapped out what I could. No other plugins I use have this kind of issue all the time, just Kontakt over the last few years.

Need to know what plugin was loaded and if it is Kontakt, is the plugin loading but the ibrary is empty or is KK loading up blank? Sadly if you are on mac there are limitations as to what versions of plugins and software you can install but there is a thread on the forums here somewhere that lists previous versions of Kontakt libraries if you find the latest ones do not load, hopefully you have some notes or something of what you have loaded in which tracks, I suspect like most people tho you don't keep any kind of project notes.

Ah, correct you are. Skim reading fail, not even sure where I even deduced he was on mac since it actually says Win in the bottom. I just defaulted to people updating because they are forced to which is only really a mac thing. Should be common knowledge these days to never auto update all your plugins and for the uneducated, when it comes to NI software never go in blind and update, even if it is suggested to on the forums here, without first doing backups or making sure you know how to roll back because, well, this is what happens.

Also - the OP claims to be using KK v2.6.7 - which is REALLy old.

Yeah pretty sure that may be the issue if he updated Kontact and such because it does not work with VST3. I believe 2.8 was the first version with VST3 but at the very least he should update KK to the v2.9.6 as that has proven to be stable for 2 years now. With the issues he has, stay well away from KK V3!

Your error messages are a bit strange.

In the first screencap - you indicate a missing Komplete Kontrol "VST3". Indicating that you are missing a version of KK - that is far newer than 2.67. This is because 2.67 did not have a VST3

And the second screencap - indicates you are attempting to work with Choral and Flair VST2 plugins - which have not been a thing for years now

Flair was updated to VST3 on Dec 7, 2021 and a quick scan of my install indicates no such thing as a VST2 for this effect. Same for Choral. It appears these two have not had a VST 2 for a very long time now.

Your only option here - for these old songs - unless you are somehow NOT scanning a super old version of Flair.dll or Choral.dll - is to replace them with their new VST3 counterparts.

For the Komplete Kontrol issues - to cover all your bases - I suggest you be using Komplete Kontrol v2.9.6 which offers both VST2 and VST3 versions of the plugin.

I too use v2.9.6 here with my S61 MKII and still use Kontakt 7 daily - no issues to speak of. But I use Studio One and my VST plugin folders are standardized.

I have never allowed those bizarre Native Instruments suggested locations (C:\Program Files\Native Instruments\VST Plugins 64 bit)

I use the Steinberg VST standards for everything:

C:\Program Files\Common Files\VST3

C:\Program Files\VST Plugins

VP

KK v2.9.6 is the way if you need BOTH VST2 and VST3 variants.

The FX - I have no idea how/where you managed to wedge a VST2 version of these into a project - but I am guessing it may have been 2020 (or earlier)

VP

Well, we were all waiting for the V3 update of KK3 to improve and enhance browsing but what we got was something that instead hindered it more than it improved it, became far less intuitive and completely omitted or broke many working features.

Usually you would have some hope things will improve since many users were raising the exact same concerns, however based on history and the fact that we have constantly heard their attention for software is based off "data and metrics" and this was a leading reason for certain decisions it is quite clear the decisions are made by someone analysing the data, not a team passionate about making things work. Have been waiting years for this statement to be proven wrong but at every turn it seems to be more cemented in reality.

So it may be strange you are waiting on updates for NI to improve things, by all means hold out hope they can offer improvements that will benefit you, don't let my opinion affect you there, just some of us have kind of lost that hope some time ago and have had nothing to rekindle that again for years….