I have upgraded to Lightroom 6 (on a stand alone licence) and it installed OK. I chose the option to update the catalogue from Lightroom 5 and initially it was working fine.I still have Lightroom 5.7.1 installed on my laptop.
Now when I try to open Lightroom 6 the splash screen appears but nothing else happens and all I get is ' Lightroom not responding'
Lightroom 5.7.1. still works normally.
Any suggestions please. Should I uninstall Lightroom 6 and start again?