Diablo 4 players can use the in-game chat again
Blizzard quickly fixed a Diablo 4 chat problem that affected multiple players.

WoW Forever is down on EU tonight, so you might have been playing Diablo 4 instead and wondered why you were suddenly seeing no messages in the chat at all.
The problem was first reported on the official forums, with multiple players saying that chat had stopped working over the previous couple of hours.
It did not matter if you tried the clan, whisper, trade, or local one, nobody could use any in-game chat. People kept getting the message "Chat access will be blocked until profanity filter is initialized." Another player even reported experiencing the same issue in Diablo II: Resurrected.
Blizzard quickly responded that they were looking into it:
Thanks for the report MrTopsyKretz, team is aware and investigating
And less than an hour later, he posted another message confirming that everything had been solved:
we just pushed a fix for it, re-log your game and you should see messages in chat now
So if you suddenly found yourself unable to use the in-game chat in Diablo 4, you can now get back to messaging. Blizzard has already deployed a fix for the issue. They did not give any details as to what exactly caused the problem, but at least it was fixed really fast.
If it still does not work, it is because you need to log out and back in for the fix to take effect and the game to restore chat functionality properly. In case it would not be enough, try to close the game entirely and restart.
For more information about Diablo 4, check out our latest news.
