Merge panorama to Photoshop cc

Hi,

I am running latest Lightroom cc and latest Photoshop CC on a iMac 2011, with 24Gb ram.

Have used the merge panorama in Photoshop for years and it have been working fine - but now I got a strange problem.

I select two photos in LT choose the edit in PS merge panorama - get the dialog how to merge it select respective and PS oppen and the first photo shows up in a layer but then nathing happen - it just freeze.

If I use automate and panorama inside PS it just work fine. Today I also had the same problem when I tried to add two photos as layer in PS.

Hope someone can help me

best regards

Choke