Graph sometimes doesn't appear

[kingboyk]

It has been reported in SO chat that sometimes get progress does not deliver a progress graph.

[Bhargav-Rao]

That is because of SO side restrictions. The bot would probably have timed out while trying to upload. Waiting some time and then issuing the command has always worked.

Another note is that the bot is a low rep user and has a limit on the number of images it can upload. I am not sure if this restriction exists, but might be a reason.

[kingboyk]

It does appear from a cursory glance of the code that something like that is happening and the exception is swallowed.

[Bhargav-Rao]

Therefore the best way to go about is to just use the command once or twice a day, which is more than sufficient.