3.5.0 hangs no matter what plugin it is

Post a screenshot of your Preferences > Plugins > Locations screen

Have seem some people are downloading and running a previous version of 3.2.1 who are having the same issues.

Is that the best temporary fix for the minute ? I'm currently running 3.5 and having no joy with it loading.?

loaded up maschine 3 with no issues?

As the program isn't loading I can not get into preferences Jason to find the plugin in locations, will they not be default after a fresh install ?

On a default install yeah should be default unless you have installed KK at all in the past or even updated (which you do say you updated in another thread), the settings are carried over so unless it is stated this is a brand new install it is not known if this is the case so any information to clarify is always welcome. However, it will point out exactly what locations are set even as default so you can then simply focus in those locations. Just FYI, in your other thread with a log it shows non default locations being scanned:

C:\Program Files\VstPlugins\
C:\Program Files\Steinberg\VSTPlugins\

also the 32bit location which is no longer supported by KK and should be removed (I think KK ads this by default but I always remove everything except the VST3 path and my main VST2 path):

C:\Program Files\Native Instruments\VSTPlugins 32 bit\A

You do have a few plugins failing the scan which could mean these are problematic so may be an idea to check these and update them:

Scanning plugin AVOX CHOIR failed with result code -1073740791, error code { .value = 0, .category = system, .message = The operation completed successfully } and message ""
Scanning plugin Ultra Analog VA-2 failed with result code -1073741819, error code { .value = 0, .category = system, .message = The operation completed successfully } and message ""
Scanning plugin Solina failed with result code -1073741510, error code { .value = 0, .category = system, .message = The operation completed successfully } and message "*** Queue destroyed without being stopped ***
[ERROR] Scanning of plugin C:\Program Files\Common Files\VST3\WaveShell1-VST3 15.0_x64.vst3 with name failed because not valid information could be obtained
[ERROR] Scanning of plugin C:\Program Files\Orion\VSTPlugins\DUNE 2.dll with name failed because not valid information could be obtained

On the previous v2 of KK you could press the ESC key when the loading splash screen displays to cancel the scanning and go straight into the KK software. Not sure if this is still possible in the latest v3 KK (should be if it was designed by someone with sanity) but was an important function to allow easy changes to the scanning paths in the case where a user has multiple locations where VSTs are, more applicable back when VST2 was a thing and people had a mess of plugins scattered around their system. If you can bypass the initial scan then you can go into the plugin locations tab and select one location and click rescan to try and rescan again from within the software.

The request for that screenshot was for the OP and Jeremy's note that in that case it seemed to be hanging on files not related to VST's at all and I have seen some silly things over the years such as people just setting their c:\ drive as a VST location so KK has to scan every .dll file on your system which is ultimately going to cause a problem.

However I have seen far more reports of this issue just in the last few months than I have for years before so it seems more an issue with how the plugin scanner works these days which is why I just cannot use KK V3, have never had an issue with KK V2 in this regard and I have well over 600 plugins over VST2 and VST3 without a single scan issue

Basically, it is always 1 step forward, 3 more back with KK. This is why I cannot update to V3 at all and stick to 2.9, too many issues and frustrations with V3. It is still (IMHO) completely Beta software because it is unfinished, lacking basic functions (that KK V2 has) and is struggling with stability, not something you expect from software that has been out for 10 years (even close to 2 years now with V3).

Hey all, back again. Just a quick update for you after sorting the errors with the plugins and installing 3.3.4 then kk 3.5 Initially got the software working but after running another plugin scan it still locks up after scanning all plugins and does not open, have to close the program down and when it reopens everything is there and working???

I will include the log file which does not have any errors apart from a NI one which is this :

Application: mixpanel start
Application: initialisation done
A software instance was not closed properly or is inoperative. Its IPC data has been removed.
[ERROR] Layout contradiction - height of Bar Footer is given at line Komplete/Dialogs/DialogBasicPanelStyling.txt:269 of the stylesheet but also computed automatically by styleBreadthXXX!!!
Skipped 1 duplicate messages..

As you can see the issue has not been resolved :

John :(