For some people, the latest patch, which fixed a few minor issues, and the big “Sound Loop Crash”, created a problem with not being to get past the loading screen, though most indications are that gameplay is still consistent.
Some players have found various fixes for this issue, and it seems to stem from using a third-party settings changer to effect the UI.DrawEnable configuration.
Here’s a suggestion on how to fix it, thanks to /u/LightOfShadows on Reddit:
In your origin games/battlefield 4 folder (or where ever your root folder is) open user.cfg in notepad or other text program. Delete the line UI.DrawEnable 1 and save the file.
Note, this settings file should only be present if you have manually created it using a third-party settings editor for BF4...