Hello there, Alicia. 

Yes, we had an investigation about the invoice's Activities section not updating to the actual activity done. With this, I suggest reaching out to our Customer Support team as what my colleague @RenjolynC states above. We'll open a new case for you and we'll surely look into a permanent fix to this issue. 

You can follow the steps provided. Just a heads up, due to COVID-19, we have reduced our support hours to 6 AM - 6PM PST from Monday to Friday. For more details of our contact support hours, click this article: Contact Support. 

Thanks for your patience. Take care always!