I would like to see a list of sequences being rendered during the batch process, so I can see which has been rendered and what still has to render. Just to give me a ballpark idea of where things are at.
With that, I would like to see FPP Connect provide a status as it uploads beyond the progress bar. For example, which controllers have been uploaded to, which still need uploading to, per sequence. My knee-jerk reaction UI idea would be a grid with each controller listed at the top, and each sequence as a row. The cells for each controller and sequence combination would show a Yellow arrow of what is to be uploaded, green check box on successful upload, red x for failed upload. Maybe even have an auto-retry until count feature that would re-attempt uploads on failures up to a certain time, or after a pass of uploads has occurred, have a button to retry for any failures. (I realize this may seem like a crutch for all the CURL errors that appear to happen. However, it would address other random network / IO issues that can occur from time to time)