First all grain batch

[jtrux]

Did a biab, I’ve never seen so much trub. It plugged my screen, I had to pull the wort off from the top using my autosiphen

 

[foolsbrew]

Probably just milled too fine. Don't worry though, even if you don't siphon and dumped it with the trub, it settles out just fine.
Congratulations on your first biab.

 

[WhiteRhyno]

Welcome to all grain brewing, especially BIAB
There are some ways of managing the amount of trub you get, hopscreens/whirlpools/finings etc, however best you get a couple of brews under your belt then start fine tuning these sort of things.