Last message in chat is not displayed

Bug report

• Platform: Linux
• OS version: Debian 12.10
• Jami version: Εἰρήνη
• Distribution channel : Jami.net
• Account-related devices: multiple
• Can you reproduce the bug: occasionally

Steps to reproduce (STR):

1. When I start my PC every day, Jami autostarts and loads the last messages of swarms.
2. The last message of the discussion of swarm Jami Test Communauté is not displayed correctly. Instead, it prints the path of a PNG file: /home/pierre/.local/share/jami/1820________b3f5/conversation_data/bd85910bbb_______________219f1bf6aded1/3755823fa4e5066f3655d7a12810e759e557b6b9_2939682515756594.png This file does not exist on the PC.
3. The following day, when new messages are loaded. The missing message is now displayed but the last message of the conversation is not, and the path to the PNG file is different...

• Actual result: The last message of the conversation is not displayed correctly.
• Expected result: All messages in the chat are displayed.

Relevant logs, screenshots or video :

After reboot of the PC the day after, the crypted last message disappears and is now displayed correctly:

But when new messages appear in the swarm discussion, the last one won't display...

It's degrading with version Build ID: 202504120107 where many messages in that conversation don't display...

assigned to @ffauteux-chapleau

added severityhigh sprintbacklog typebug labels