There are many confirmed issues with LR 6.2 - you may try the steps here: Update on Lightroom 2015.2 / Lightroom 6.2 Release
Anyhow, you are best helped if you roll back to 6.1.1 as many users: http://www.lightroomqueen.com/how-do-i-roll-back-to-lightroom-2015-1-1-or-lightroom-6-1-1/
There are hundreds of threads already discussing the same issue
Thanks very much. I'm very new to LR (still on trial). I'm using CC trial. Wonder if I should just buy LR 6 and not update for a few months.
Lightroom CC and 6 would be same except a few things like Lightroom CC includes dehaze feature and Lightroom mobile.
And for the import crash during import, you can try the suggestion mentioned by F.McLion
1. Go to Lightroom Preferences> General tab
2. Disable the option "Show Add Photos screen"
3. Relaunch Lightroom and try to import
Chetna, thanks. I was getting ready to try your advice and an update came in for LR (2015.2.1). I installed that and no more crashes. Thanks again.
Yes, the update was released today for the crash fixes.
Glad to know you got it working.