It seems something has broken quite drastically with the ingame chat function, likely (I'd guess) due to some anti spam mechanics.

SOME longish posts, like several sentences in the chat, will simply NOT APPEAR to anyone. This is in both Party and /Say. You can type a few sentences, hit enter, and YOUR client will show that you've posted it, but noone else will know you've said anything. The chat text just never appears to them.

Talking to a friend tonight, we tested with a long passage of spoken roleplayed text. If either of us posted the same exact text segment in /say or /party it would not show up to the other person. If however we cut it in half and posted it in two parts, both halves would post fine - it seems it's not the content of the text that matters, merely the length.

However, it seems arbitrary as to whether a long post is deleted or not - several long posts of equal length got through fine. There's no warning that a post didn't happen either.

Not only is this annoying to anyone having long indepth chats, but this is absolutely crippling to any sort of ingame Roleplay as having long posts randomly deleted just breaks any sort of continuum.