Hi @Anonymous ,
Welcome to Microsoft Q&A platform and thanks for posting your question here.
As per my understanding , issue that you are facing is that web activity is performing it's task within the stipulated time, however, the activity is still in progress since long. Kindly let me know if that is not the case.
In order for us to provide better help, kindly share more relevant information like Web Activity configuration details with screenshot.
Kindly check if increasing the httpRequestTimeout value helps. For more details, please visit: Web activity response timeout improvement
Please let us know how it goes. Looking forward to your response. Thankyou