This bug has been in Photoshop for as long as I can remember: Photoshop keeps it's own clipboard and needs to be constantly alt-tabbed out to force it to pull images in from the Windows 7 clipboard, for example when taking a series of screenshots. There may have once been a workaround using the AlwaysImportClipboard registry setting (http://www.pixelbath.com/2010/10/fix-the-photoshop-clipboard-all-versi ons/) but that doesn't seem to work with CS6, if it ever did.
Since it seems Adobe is never going to fix this, does anyone have a more recent workaround?
To recreate the bug:
- take a screenshot using printscreen button
- start photoshop CS6
- new file
- paste (works)
- alt-tab to another app
- take a second screenshot using printscreen button
- alt-tab to photoshop
- paste (BUG - pastes the same screenshot as before)
- alt-tab to another app
- alt-tab to photoshop
- paste (works - pastes the second screenshot)