No sooner did DICE release patch 522174, 522175 had to be trotted out. Looks like 522174 caused more issues than it was meant to fix. 

From Bazajaytee (DICE), Source

*UPDATE* 522175 (not 533175 as in Bazajaytee's original post) is going live now. STEAM will launch later, possibly tomorrow, as it needs to go through extra QA before it goes live on Steam.

Version 522175 is going live within a couple of minutes. This has fixed the multiplayer map CTD's we experienced with 522174.

This patch was sent out yesterday and many ranked servers have already switched over. Admins to your updaters! Thanks to ibleedv20 for the heads up.

Changelog for 522174

Single Player -

Fixed: Graphical issues on some systems on SP_03 (at start and when displaying background mountains at “Up river”)
Fixed: Character voice issue during cut scenes in SP_03b (only affected Spanish)
Fixed: Hang when killed using TOW Launchers in SP_05
Fixed: Graphical issue on some systems on SP_05 (displaying background mountains)
Fixed: Voice volume in cut scenes on SP_06
Fixed: Unexpected dialog at start of SP_08 (only affected Italian)
Fixed: Random crash in SP_09 cut scenes

Multi Player -

Fixed: Server Browser - Joining a password protected server results in a connection timeout
Fixed: Server Browser auto updating server list when reopened causing a timeout issue
Fixed: Server Browser showing “all servers” when re-entering browser on the History or Favorites tab.
Fixed: Password issue during Friend invites
Fixed: Password text field issue on joining a password protected server
Fixed: “Flickering” ship on Arica Harbor
Fixed: Clan tags that use numbers in them displaying a “0” on the Select Spawn Point screen
Fixed: Display issue on long server names
Fixed: Mortar Strike icon not updating (Beta issue)
Fixed: No “Exit Game” menu option appearing at the end of some rounds.
Fixed: Flickering user rank icon (appeared as an animated gif) when user reaches rank 10.
Fixed: Flickering trees and “Red Box” on Laguna Presa
Fixed: User is logged out when failing to create a new soldier
Fixed: Zeus stationary weapon not appearing in stats
Fixed: Zu23 not appearing in stats
Fixed: BMD3 AA not appearing in stats
Fixed: Friend request displaying incorrect Veteran stats
Fixed: End of Round screen displayed incorrect “UAV_Station” – now displays correct localized text.
Fixed: K/D ratio displays in the Front End
Fixed: K/D ratio displays correctly when “comparing”
Change: Server browser now defaults to list via Ping first
Change: News Ticker font support for Spanish, Polish, Russian and Japanese
Change: New message for server full (reported as “I get no message when I try and join a server, it does nothing”)
Change: New message displayed for attempting to join a password protected server without providing a password (reported as “I get no message when I try and join a server, it does nothing”)
Change: Displays version number on Front End Legal Screen
Change: Display of weapon icon during loading screen