Hello.
Thank you for your answer!
Yes, same thing. Marty source, Vegas multilang and crash core at ChatPacket.
I haven't checked the issue in depth, I wanted to ask here first since I've seen you encountered the same issue thinking that it will save me some time.
Issue not happening on same ChatPacket call, it happens at random it seems.
UPDATE:
I think I fixed it. I used to replicate it easily now I can't anymore. I think it had to do with the locale_string format or maybe some unsupported characters of the other languages. I replaced them with my english locale that was good and works fine now.
I can't explain but it worked so far.