I'm affected by this horrible bug and I'm not sure if it's being given the importance it deserves, this makes the game completly unplayable, there seemed to be a fix for the problem caused by silence casted on fights on patch1 that triggered a worse version of this bug for a ton of players.
My game was working fine then patch1 rolled out and my game and saves were all destroyed, neither me or my companions can't talk to anyone or eachother, I've been following this topic online hoping to find a solution and it seems everyday more and more people are affected, and it can happen whenever and in every act, so even If I were to restart the whole game this bug would be lurking on the back of my mind since it can affect your game+ saves at any time too
These are some of the posts I've been following regarding this issue, it seems it's been a bug from the get go but more and more people are being affected:
https://www.reddit.com/r/BaldursGate3/comments/15iinzr/cant_talk_to_npcs_bug/https://www.reddit.com/r/BaldursGate3/comments/14eh1gz/unable_to_talk_to_any_npc_in_the_game/https://www.reddit.com/r/BaldursGate3/comments/161py89/main_character_cant_initiate_dialogue/https://steamcommunity.com/app/1086940/discussions/0/3808408747681416361/Really crossing my fingers that patch2 fixes my game and saves but they might just stay corrupted who knows