Merge to Panorama/Photomerge hangs up in PS CC

Question

I have 5 images I select to make a panorama.  Usiing PS CC 64 bit on Windows 7 OS, File/Automate/Photomerge works fine.  But when I try to select the photos in LR 5 and Edit in/Merge to Panorama in PS, it opens PS CC and loads the 5 images and opens the Photomerge dialog box as I would expect, but when I click OK it begins the merge process and hangs up and PS stops working.  So I can get "photomerge" to work if I choose the images directly from PS, but not when I send the images to PS from LR.
I've never had a problem with this process with CS 5 or CS6.
Help Please.
Thnaks,
Matthew Kraus

Answer 1

That's interesting that you should say Photoshop CS6 is faster, because I've noticed just the opposite.
For all things Photoshop CC 14.x has mostly been equally fast, if not a little faster - on my system.  I've run specific benchmarks to determine this, including several of my own devising.  Plus I still have the old versions of Photoshop installed, and can compare them directly.  For me Photoshop CC has been the most responsive version yet.  But of course we all use Photoshop a little differently from one another.
One notable exception, where Photoshop CC does seem (and measure to be) a bit slower is in painting operations with very large brushes.
Just as an example, here are some benchmark results where I've found Photoshop CC faster, from my logs...  I hope this comes out readable...
Photoshop test file operations:                                            CS6 x64                CC x64
    PSCS6_large_test_file.psb
        Drag 1,736,577 KB PSCS6_large_test_file.psb to unopened Ps:      21.6 seconds        20.8 seconds
        Save compressed test file as CompressedSave.psb:                  20.4 seconds        20.2 seconds
        Drag white dots layer around at 12.5% zoom:                      4 FPS              10+ FPS
        Drag black dots layer around at 12.5% zoom:                      3 FPS              6 FPS
        Drag white dots layer around at 100% zoom:                        3.3 FPS            5 FPS
        Drag black dots layer around at 100% zoom:                        2.5 FPS            3.5 FPS
        Flatten image:                                                    13.8 seconds        13.8 seconds
        Stroke Black soft 1000 pixel brush across top layer diagonally:  1.2 seconds        1.2 seconds
        Stroke Black soft 5000 pixel brush across top layer diagonally:    6.4 seconds        12.0 seconds
    IMG_5079.CR2
        Drag to Photoshop, time to open in Camera Raw 7.2 RC:            3.0 seconds        2.0 seconds
        [Open Image], time to open as 6144 x 4096 16 bits/channel:          7.4 seconds        3.2 seconds
        Fractal Sharpen, Med Sharp Low ISO:                                1:44                1:20
    Start Photoshop
        Double click 64 bit Ps CS6:                                        3.2                2.8
        Double click 32 bit Ps CS6:                                        4.4                    4.6
    Benchmark:
        http://clubofone.com/speedtest/:                                    13.0 seconds        11.0 seconds
            CS5 x64:                                                        14.8 seconds
            CS4 x64:                                                        16.0 seconds
    Panorama Stitch of 25 6144 x 4096 raw files @ 16 bits/channel:
            344 MP result:                                                    6:46                6:15
-Noel