Older messages disappear within a writing based chat

Whenever I’m writing stories with Gemini, after 1-2 messages, my old messages get deleted.

They’re still visible in the my activity page but Gemini no longer shows them in the chat, and Gemini doesn’t remember the context of previous messages that are lost.

I tried both web and mobile and none of the messages show up.

It only happens with writing based chats. All my other chats don’t lose messages even if the messages are long.