Does it occur with 2.3.76?

Just heard from Softube although I did run the installer for 2.3.76 it appears as though it is still using previous version. So downloading again and re-installing to see if issue still occurs will know in 20 minutes or so.

For some reason the previous install created a new library for software c:/program files/cakewalk/vstplugins/Softube/Softube/.
Have now removed all older versions and checked all are at version 2.3.76 but still crashes as before.

Okay with Softube's help have cracked the issue. For some reason, possibly because the console display app was up and running, the new version of it did not install when I originally ran it.
Solution:
Right click on Softube console 1 app icon and select quit then install the softube update.
 
Working again in Sonar

Thats great! Thanks to Paul from Softube for resolving this issue.

It was also David Gustafsson who I was e-mailing backwards and forwards too so he deserves a thanks as well which I have already sent to Softube. Great response by all and it does look like the fact the app was running caused the install issue and hence everything else but luckily Softube are working on a new delivery system so hopefully this will be a once off.