I've had the exact same issues but with the LC27HG70 monitor, the 27inch version of what you have Valkyrie. i've updated my monitors firmware to version 1020.0 but the issue remains. It's an issue with Witcher 3 but only seems to kick in when looking in the darker areas of the game. When playing in lighter coloured areas it seems to work fine but after entering a darkly lit shop for example it will take a few moments before something in the monitor snaps and major ghosting kicks in. The issue with the monitor and the ultimate engine is especially bad with Guild Wars 2. Near constant screen flicking, banding, and ghosting at all times during gameplay making it unplayable until i switch the freesync mode to standard and all issues disappear. Mousing over AMD freesync in the AMD settings shows that the monitor standard freesync mode only operates between 120 and 144hz making it useless compared to the much better 48-144hz with LFC that ultimate engine offers. Beyond disappointed with the performance of this monitor and i suspect ill be asking for a refund all too soon. Before then i'll test with a better display port cable and rolling back the AMD drivers which i hear may solve the issue.
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