On "Normal" texture settings, the game might bypass those specific corrupted sectors, leading you to believe the error vanished. This is a false positive. The corruption is still there; you are simply avoiding it.
If you are using mods, the x64a.rpf may have been altered, causing it to fail the official integrity check . Recommended Corrective Actions x64arpf failed crc check gta v extra quality
to your GTA V installation directory (usually C:\Program Files\Rockstar Games\Grand Theft Auto V or steamapps\common\Grand Theft Auto V ). Locate the file named x64a.rpf . Delete this file manually. Open your Launcher and select Verify Integrity : On "Normal" texture settings, the game might bypass