Programs that apply an overlay can potentially cause stability issues.
If you're using one and the game crashes, try disabling the overlay. If there is no such option, test the game client with the program not running (or temporarily uninstalled) for testing purposes.
Examples of programs with overlay functionality include;
- AMD Radeon ReLive
- ASUS GPU Tweak II
- Discord
- EVGA PrecisionX
- MSI Afterburner
- Mumble
- Nvidia ShadowPlay
- NZXT Cam
- Overwolf
- Razer Cortex
- Razer Synapse
- Steam
- XFire