@sikasid said in How to completely disable resume info saving?:
I am quite sure, and it is not a single occurrence.
Where does the firmware gets the file length? From the web interface? That might be the source of the error?
Yes, the web interface sends the file length, and the firmware checks that it has written exactly that amount of data.
Please note, with some slicers it is possible to have DWC upload the file before the slicer has finished writing it, because the slicer doesn't open the file in exclusive mode while writing it. This used to be the case with slic3r - I don't know whether it still is.