[Bug] Doubts about additional cursors

[qii404]

Reproducible in vscode.dev or in VS Code Desktop?

• Not reproducible in vscode.dev or VS Code Desktop

Reproducible in the monaco editor playground?

• Not reproducible in the monaco editor playground

Monaco Editor Playground Link

No response

Monaco Editor Playground Code

No response

Reproduction Steps

No response

Actual (Problematic) Behavior

No response

Expected Behavior

No response

Additional Context

When I select multiple lines of text, the cursor position is correct, but an additional vertical line will be added below, just like an additional cursor. I don't know how this came about.

20240524160232.mp4

my init config like this

value: 'xxx',
theme: 'vs-dark',
language: 'json',
links: false,
readOnly: true,
cursorStyle: 'underline-thin',
lineNumbers: 'off',
lineHeight: 24,
suggestLineHeight: 24,
contextmenu: false,
// set fontsize and family to avoid cursor offset
fontSize: 14,
fontFamily: 'Monaco',
showFoldingControls: 'always',
// auto layout, performance cost
automaticLayout: true,
wordWrap: 'on',
// long text indent when wrapped
wrappingIndent: 'indent',
// cursor line highlight
renderLineHighlight: 'none',
// highlight word when cursor in
occurrencesHighlight: false,
// disable scroll one page at last line
scrollBeyondLastLine: false,
// hide scroll sign of current line
hideCursorInOverviewRuler: true,
minimap: {
  enabled: false,
},
// vertical line
guides: {
  indentation: false,
  highlightActiveIndentation: false,
},
scrollbar: {
  useShadows: false,
  verticalScrollbarSize: '9px',
  horizontalScrollbarSize: '9px',
}