I have one of the first kickstarter Proforges and I wanted to switch to Marlin 1.1.9 and after sorting out the config I have the issue that the printer stops repeatedly during printing via Octoprint . It seems to me that the printer is waiting for commands from the octopi, the terminal window showed the following error message:
Communication timeout while printing, trying to trigger response from printer. Configure long running commands or increase communication timeout if that happens regularly on specific commands or long moves.
Recv: Error:checksum mismatch, Last Line: 165
This never occured with the stock marlin version.