Conflicts with Game Capture include but are not limited to: Other capture programs, Razer Synapse (disable heatmaps), graphics mods like ENBSeries and SweetFX, and any type of software or utility that displays an in-game overlay like EVGA Precision, MSI Afterburner, TS3/Mumble overlays, Dolby Axon, Raptr, Overwolf, etc. Any program like this can cause the problem. Either remove them or if possible run the game in windowed/borderless mode and use window capture instead (this won't work for OpenGL titles).
If you use D3DGear it must be uninstalled completely.