When you die to channeling, everything is gone

I got too close to the mob and i got killed by lightning, although there was a bit of fire, when i die you can theres nothing, my inventory was full too, not just a couple items, i had items that took me hours to get and they all just vanished https://gyazo.com/a4d3240d5bfe4602b39b1da2cc15470d i had OBS open at the time so i have provided a recording of the 'Incident'