Server hang with starlight and chisels and bits installed about starlight HOT 3 CLOSED

That mod is reading tile entity state in a manner different to vanilla. Server side code for vanilla guarantees that the light engine wont actually try to read tile entity data. But this mod decides to bypass it for some reason - and so, it tries to read the tile entity data off of the main thread. However the chunk isn't ready because it's in lighting - so it waits until the chunk is generated. Except of course, if the light thread is waiting for it to complete then it's waiting on itself. So it'll never complete, hence the stall.
There's nothing I can do, as this will happen even in vanilla. You should take that report (and what I said here) to the mod author.

from starlight.

Hello, it looks like it was reported to them, but it was closed as invalid.
ChiselsAndBits/Chisels-and-Bits#600

from starlight.

Well that's a shame.

from starlight.