I just did a print where the filament ran out but the filament runout detection sensor did not stop the print. The print was from an SD card running on an SV04 using the standard Marlin firmware. The blue sensor LED was on when the print started. As a result, I now have the old filament stuck in the hot end and will have to disassemble the hot end to remove it.
Has anyone else had this issue and if so, can you tell me what the cause is and what the fix is. Thanks.