Where does the bug appear (feature/product)? Cursor IDE Describe the Bug Cursor will automatically close chat tabs that it deems have gotten too big, on reload, or when doing cmd N to start a new chat while on an existing chat that’s too big. Steps to Reproduce Make a chat thats quite big lots of …

Hey, thanks for the report. A similar issue has come up before, when chat tabs get closed after restarting: Chat Tabs Automatically Close When IDE is Closed To dig in, we’ll need a bit more info: Do the chats disappear from the history too (Chat History panel), or do only the tabs close and you c…

I can restore from history. I don’t know how many messages maybe 20? It feels like a built in optimisation that’s just annoying rather than an unintended bug but it is essentially a bug given how ass the ux is It happens consistently

It’s clear this gets in the way of working, especially when you’re juggling multiple agents at once. Thanks for clarifying. It really looks like some optimization that kicks in at around 20 messages. The fact that it happens consistently and predictably supports your suspicion. I’ll pass this to t…

Can confirm this annoys me a lot too. Seems to be linked to time since last use more than number of messages in my case.

I had 3 concurrent cursor ultra subscriptions, i cancelled them all and moved to claude code max and codex pro plan. much much cheaper as its subscription based, and no different to using cursor since i wasnt using any features after they all broke anyway, i was checking git diffs either way…

I have several situation when chats disappear suddenly (on attempt to reload window to try to revive the chat). They also disappear from history.

@deanrie Any updates, please? This is VERY annoying

Update here, everyone: [image] Why do chats close automatically? Bug Reports Hey, this is a known issue. You already posted in the thread where we’re tracking it: Cursor automatically closes large chat tabs There’s a workaround. In Settings > Agents, find Max …

Cursor automatically closes large chat tabs

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Enrico_Varano (evaran) March 17, 2026, 2:34pm 14

Update here, everyone:

Topic		Replies	Views
Why do chats close automatically? Bug Reports chat	2	22	March 17, 2026
Opening a new chat tab causes previous chat tabs to disappear – can't have multiple chats open simultaneously Bug Reports chat , layout	3	31	April 15, 2026
Chat tabs dissapearing Bug Reports chat	7	113	April 16, 2026
Bug: New Chat Tab overwrites/removes other chat tab Bug Reports chat , early-access	2	36	April 14, 2026
Agent chat randomly disallowing user input Bug Reports chat	7	56	February 9, 2026

Cursor automatically closes large chat tabs

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