Flakiness in validator: Incorrect type. Expected "string"

[Ark-kun]

Describe the bug

When adding values to an array, the validator often starts highlighting the new string and claiming Incorrect type. Expected "string".
The issue goes away when doing some insignificant changes in any part of the file (e.g. comments) and re-saving the file.

Expected Behavior

I expect the validator to always recognize strings as strings.

Current Behavior

The validator sometimes does not recognize strings as strings.

Steps to Reproduce

1. Create file named component.yaml
2. paste the following YAML into the file:

implementation:
  container:
    image: alpine
    command:
    - aaa
    - bbb
    - ccc

3. Put cursor somewhere after one of the array items (e.g. bbb).
4. Press Enter to start a new line
5. Type - ddd to add a new array item, same as the others
6. Notice the semi-persistent error complaining about the just added ddd item. (See screenshot)

Environment

• Windows
• Mac
• Linux
• other (please specify)