Reported by @tall shard
Bug Report: Chat content suddenly disappeared but remain on list
`Steps to Reproduce`
It happened at random. Just create chat normally, and continue conversaion.
`Expected Result`
Conversation going normally.
`Actual Result`
Chat content suddenly disappears; just shows "Unable to load conversation {UUID}" error, and chat cannot be deleted, modified, continued, etc. However, generated images remain on image gallery.
`Environment`
Windows 11 Pro, Web