Vscode variable prompt is invalid

recently upgraded vscode to v1.30.1 found the following problems on variable prompts

due to the previous coding habit, I am used to typing a space after the colon
, but after typing the space, I find that the variable prompt disappears, leaving only some tips for plug-in injection
could you tell me where to set up to solve this problem


in the user settings, add "editor.suggestOnTriggerCharacters": false

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