[Solved] How to Fix Photoshop Error “Could not save as FILENAME because the file is already in use or was left open by another application”

Adobe Photoshop CS5 and CS6 unable to save file and prompt below error: Could not save as FILENAME because the file is already in use or was left open by another application. Photoshop CS6 is running on macOS Mojave. In macOS Mojave, there are problems saving files within Photoshop CS 6 & 5 due to […]