Creating a question set in textual format

Hi,

When creating a question set and using the "Textual" tab for inserting multiple questions at the same time,
the "tip" is not saved when editing the questions again.

Steps:
1. Create new question set and click "Textual"
2. Copy paste question like this:

What is the latest version of Drupal?
*Drupal 8:tip:Correct! this is the latest version.:Wrong. Drupal 8 is the latest version.
Drupal 10
Drupal 11

3. Save the content
4. The content is saved correctly and the tip is shown correctly.
5. But when editing the "question set" again, and clicking the "Textual" -tab, the "tip" part is missing and there is only left:

What is the latest version of Drupal?
*Drupal 8
Drupal 10
Drupal 11

Am I doing something wrong or is that "not chosen" and "chosen" done correctly?

Thank you so much for this cool module