[BUG] [BUG] MarkConversationAsRead works for one participant but fails for the other in the same single chat

[wujunhui99]

OpenIM Server Version

3.8.3

Operating System and CPU Architecture

Linux (ARM)

Deployment Method

Source Code Deployment

Bug Description and Steps to Reproduce

From the UI perspective, this looks like:

• user A and user B are chatting normally
• for the same conversation, one side's read status works
• the other side's read status never updates correctly

Attached screenshots are showing:

• two users in the same conversation
• only one side can update read status correctly

Steps to Reproduce

1. Create two users: A and B
2. Start a single chat between them so a conversation like si_A_B is created
3. Let both sides send/receive messages
4. Call /msg/mark_conversation_as_read for the same conversation from both users
5. Observe that one user succeeds, while the other user fails with RecordNotFoundError conversation not found

Screenshots Link

No response