If the issue is specific to one game, try verifying the game files through Steam:
Sometimes the Steam client itself is damaged. You can repair it without losing your games. If the issue is specific to one game,
Steam.exe. It will automatically re-download all missing core files, including the latest steamclient64.dll and other API libraries.Background services (not just overlays) can interfere. Run Steam
Follow these methods in order, from simplest to most thorough. Background services (not just overlays) can interfere
Ensure that your Steam client is up to date. To do this:
Ensure that your Steam client is up-to-date, as an outdated client can cause compatibility issues. To update the Steam client: