I am using FlashPrint with the Dreamer and the default slic3r. Sometimes I am trying to set it up to print and I get a slicing progress bar that looks like it is doing something. But when it gets to 100%, the model disappears. I get a window with an estimated build time of 0 minutes and buttons for "print" and "back". If I click on "print", nothing happens. If I click on "back" the model reappears and it looks normal. I have had some success by turning off the Dreamer, exiting FlashPrint, and starting over with loading STL files.

Does anyone know what is going on?