Every design in Avocode needs to be transformed into our custom format before it can be inspected. During this process we export every single layer and get all the data about each element in the design file. This transformation can be processed by our servers, or the Avocode plugin for Photoshop/Sketch. That's also why you can only see this "Processing" status when you use the Upload feature. Also note that larger designs can take us more time to process.