I accidentally came by this problem of chat messages sent by me not appearing in the chat conversation area.
Steps to reproduce:
1. I start SC with the preference "Show history X recent messages in new chats" disabled.
2. I send a message to a contact I have chat history with.
3. I enabled the preference "Show history X recent messages in new chats". It has its default value of 10.
4. I send another message to the contact from step 2. This may be repeated multiple times (upto 10?) with the same effect.
The message sent in step 4 is not displayed in the chat conversation area located at the top of the area in which I wrote the message. If I open the chat history window for the contact, I see that the message has been sent (and even the contact responded to my message in my case).
What is expected to happen:
The message sent in step 4 should appear in the chat conversation area just like the message sent in step 2 did.
The problem is always reproducible for me. I've only tested it on Ubuntu 9.04 with its latest Sun JDK 6.