2 mistakes in the initial cleaning process
I've noticed that once I've used a high-temperature filament e.g. ABS with 255°C (single colour print) and after that a PLA with 215°C, the cleaning process doesn't work since the rest of the ABS in the nozzle isn't flowing out properly with this low temperature. This results in a bad first layer and a mix of the filaments.
The second thing is, since this happens I clean the nozzle in the way that I use "load to nozzle" with 255°C and select the PLA filament. The problem here is, if I don't do "Unload filament" the initial cleaning process extrudes into its own extruded filament path since it's going right/left/right. even the print bed is pushed downwards. It's because the nozzle is already full of the correct filament already but the process is for an empty one.
Maybe it's a known bug. If not, can I report this somewhere officially or is PRUSA reading it here anyway? 😉