If you were streaming via USB / Wi-Fi and the connection dropped, the controller may have stopped mid-cut. Worst case: the wire stayed hot in one position and melted a divot. Always-have-a-finger-on-the-PSU-switch is the hobby-cutter rule.
To resume: figure out which G-code line was last sent (the streamer shows progress), edit the .gcode file to start from a slightly earlier line, jog the wire back to that position, restart the stream. Not pretty. Auto-resume via line-number tracking is a future feature.
To resume: figure out which G-code line was last sent (the streamer shows progress), edit the .gcode file to start from a slightly earlier line, jog the wire back to that position, restart the stream. Not pretty. Auto-resume via line-number tracking is a future feature.