FTB Infinity evolved 2.1.2 server crashes after putting a second Provider Module mk.2 in a chassis mk.2 pipe (needed faster extraction of items).
Everytime the chunk (with named pipe setup) loads the server crashes again.
Im sorry but Im unable to provide a log thanks to my awesome hoster (not), that said it should be easy to reproduce, gonna check newer versions too.

Youre not supposed to put Multiple Providers in the Same Parent Pipe ATM.
Different Pipes will solve kinda your problem...I THINK

Though LP is really not supposed to have 2 Providers on the Same Storage Unit

Yeah but still for people with about a hundred recyclers(each has 2 overclockers) the speed simply wasnt enough so i've put two of the in (hoping it would speed things up) and well to save this mess (or rather my hours of work) i needed to go through some real messy nbt editing.
That said i would just implement a check for stuff like that to prevent putting a second one in (and ruining your chunk)

The problem lies in how the Pipes aka. The Modules access the Inventory. If its 2 different Pipes you'd probably experience "Less" issues but wont be completely free. LP is not build to be extracting from 2 different sources simultaniously.

Additionally LP dev currently is in somewhat of a halt. so there wont be changes rather soon. Im not sure whats up with the Orig. Devs but something takes their time away. Most certainly Realife.

@Bitterholz Around Christmas it's normal I think. There's no too much cubic person like me who comments on GitHub at Christmas Day.