'Undefined. Implement with the following snippet' error when using cucumberautocomplete.customParameters

[Kemot7]

Describe the bug
I don't know why, but I can't use the proper names for "parameter" when configuring cucumberautocomplete.customParameters.
I get an error every time:
Undefined. Implement with the following snippet:

To Reproduce
I am using TypeScript 5.5.2
A simple example, taken from the documentation:

Cucumberautocomplete part of VSCode settings:

   "cucumberautocomplete.customParameters": [
    {
      "parameter": "{ab}",
      "value": "(a|b)"
    }
  ],

Gherkin step line

When('I select {ab}',
  async (nameOfOption: string): Promise<void> => {
    console.log(`Selected option ${nameOfOption}:`);
  }
);

Step definition:
And I select b

Note
If I change {ab} to {word} then everything works.
However, I can't apply any custom name (only those defined by default)