FYI, I'm experiencing strange layer comps behaviors since Photoshop 13.0.2 update, on an existing .psd file. If some comps are correctly rendered, some others are not refreshed: layers visibility is not updated, workspace seems to be frozen, using for instance the magnifier tool to zoom in/out renders a completely white workspace, and moving then my mouse pointer above it only refreshes its lower half part (a little bit more actually). Moreover, Photoshop CPU consumption becomes quite high as long as I stay on such composition (around 50% CPU instead of 2% compared to working comps).
I've tried to disable GPU from Photoshop preferences, but it didn't fix the issue. Machine is a mid-2010 17" MBP w/ firstname.lastname@example.org. No problem with the same .psd file before upgrading to 13.0.2.
The ease of doing a rollback will depend on how you've been keeping your system backed up. Adobe software scatters files in many locations of the system volume. I would uninstall and re-install Ps CS6 and apply the 13.0.1 update.
Brett, I can forward my Barry's email and its attachments, if you want to check. Please let me know your address.
Here, I use a group of layers to draw a simple UI box (mostly based on vector layers, plus a few smart objects) ; inside my sequence, I display this box thanks to a layer composition. Since 13.0.2, this group for this specific layer comp is not displayed, whatever I enable/disable the display "eye-icon" in front of the group, or individually for each of its layers. An even more strange thing is that from another layers composition inside the same .psd file, changing these layers visibility works as expected.
Additionally, when this buggy layer comp is displayed, CPU throttles around 50%, and machine temperature is raising.
Just wondering before patching: is the 13.0.3 update also addresses this layer comps issue? According to the release note, it's not the case, but maybe the "layer fx applied to layers" problem fixed in 13.0.3 also fixes this weird layer comps behavior. Did you check?