Hi @Rose_Ligsay and welcome to the Forum! 
Sorry to hear your are experiencing this issue and thank you for taking time to report it!
In order to troubleshoot this issue, we would require information that can’t be shared in the Forum, so I would recommend reaching out directly to our support team following these steps. In order to speed up the investigation process, please make sure to provide the following information:
- A link to this conversation, so you don’t have to re-explain everything
- A screenshot of the Task story so we can confirm if the changed was recorded at some point.
Again, so sorry for the trouble and apologies for not being able to help you further via the Forum! Please let me know if there is anything else I can help you with!