We've released a hotfix for update 1.7.1 that addresses the following issues:

• Removed global invalidation from the game which was causing extreme stuttering for some players
• Fixed an issue where helicopter Fire Support kills wouldn’t be marked as Commander and Observer kills
• Fixed a collision issue on Summit Frontline objective D allowing players to move through a wall
• Fixed an issue with mines not exploding when driven over by vehicles
• Fixed an issue preventing ammo boxes from being available in Hardcore checkpoint scenarios
• Addressed some lighting issues on night version of Outskirts map

Known Issues:

• Fire support sounds will sometimes play out of order or not at all
• Voice over lines for fire support kills are not triggering properly
• In-game hints may show a gap between the text and relevant hotkey under certain circumstances
• Setting a community server as a favorite does not save
• The Welrod may clip with the camera in restricted areas
• The third person vaulting animation may show the players leg clipping with the world
• Night Maps Replays are played back with the incorrect lighting scenario
• Not able to scavenge skinned weapon magazines from the Honey Badger and Mk14 EBR