There is a blank vertical gap between the editor and the left sidebar. I don’t know how to delete it. 
I tried adjusting it to a single-column layout or trying to drag the splitter, but it didn’t solve the problem.
I don’t know how to restore it.
I think this is a bug because there is no such problem in VSCode.
run commoand reset view locations can’t solve it.
the strange things is that, other project doesn’t has the issue.
Hey, what if you close all open tabs, close Cursor, and then reopen it? Also, try opening an empty project and then open a tab in it.
if I close all open tabs, close Cursor, and then reopen it. The problem still exist.
if I open the project, the problem is exist.
but if I open other project, the problem is disappear.
So I guess, it is effect by some cache, but I don’t know where it is.
So, how to find the cache of this project, and delete it, it will solved.
but I don’t want to lost my history and notepad …
If to solve this problem, indeed only losing records is possible, then I can accept it. There is no other way.
Check if there is a .vscode folder in your project containing the settings.json file. If it doesn’t contain anything important to you, try deleting it, this should resolve the issue.
I‘ve tried according to your advice, but doesn’t resolve.
but thx your help. 
Try clearing the cache by following this guide:
Thanks for your help. 
It is initially determined that the problem occurs in this file: C:\Users\Administrator\AppData\Roaming\Cursor\User\workspaceStorage\3fdf8090e5d671a7ae0f57ada5b0077d\state.vscdb.
This is a SQLite database.
backup it, then delete it…
After I delete it, the problem is solved, 
but the notepad data and history are also lost.
At present, I am temporarily unable to determine which field specifically causes the problem. 
I’ve rolled back this db to backup.
I backup important history and notepad. then delete the vscdb.
the problem is resolved.
That DB is the SQLite DB that all your Chats and Composers are stored in.
I have a thingy I making right now that allows you to browse that, search it and back ALL of it up to Postgres in real-time…
However I YOLOd it into theis world and I certainly can YOLO your ■■■ back out (Yolo broke it when I tried to add some stuff - so I need to go back and fix… but given company at house for NYE - I wont be releasing it till then…
Its a different approach than what Specstory does. and it works across all Cursor sqlite instances (projects) and it works when multiple Cursor Agents are adding Composer Threads into the DB (each Composer will create its own Composer sesssions for Chat and for Edit (Composer Agent)…
No, it is not relate to Zen mode. whatever you are in Zen mode, the problem is still exists.
