Flash map error on NodeMCU with 12E

Hey, I'm getting this error on one on my ESPs too, I was playing around with some WS2812b LEDs and I saved the code on the ESP, it became non responsive so I disconnected and couldn't reconnect. I tried to flash Espruino back on but when connecting from the WebIDE I just get this printed every few seconds. I don't mind one of my NodeMCU's being out of commission, I just hope the saving thing will allow someone to recreate this issue for debugging.

 ets Jan  8 2013,rst cause:4, boot mode:(3,7)
wdt reset
load 0x40100000, len 1396, room 16
tail 4
chksum 0x89
load 0x3ffe8000, len 776, room 4
tail 4
chksum 0xe8
load 0x3ffe8308, len 540, room 4
tail 8
chksum 0xc0
csum 0xc0
2nd boot version : 1.4(b1)
  SPI Speed      : 80MHz
  SPI Mode       : QIO
  SPI Flash Size & Map: 32Mbit(512KB+512KB)
jump to run user1 @ 1000
;Loading -491521 bytes from flash...