I have a problem that occurs now and then - but not allways. I send an image to ACR, for example, apply changes to it and click on "Done". When the Photoshop-screen returns (I´ve been using Photoshop CC all the time, with the newest update installed), the changes are not applied on the image-layer. The same goes for 3rd Party stuff like NIK plug ins -- after finishing the work in there and it sends it back to photoshop nothing happens and the image remains as it was before.
could this be a RAM-overload problem? I am using a rather outdated laptop, but I usually only have Photoshop running when working.