InfoPath Dev

 Good day scop28, Just to isolate the issue has the user tried opening the published form on a different browser? (Chrome, Firefox, etc.)

 Good day nateinoh, I see you are already versed in SharePoint and you want to add a form to a list that you already created. Your form should have the ability to submit data to your SharePoint Library, what I would do is to put a button to your form then configure the data connections to your ...

 Good day Cardinal-Ifeatu, To open a form on a web browser you need to publish the form to a SharePoint Server then tick the box which says Enable this form to be filled out by using a browser, then create a new library or choose an existing library if you already set-up one. After the form is ...

Good day Richelle L, Try using a repeating table, it does everything you described sans a button.  But a flap below the repeating table will be used to add, insert, or delete tasks needed.  You can edit the label of the flap to anything you want e.g. Add Task.