[MC-141469] Unexpected error java.lang.NullPointerException

Happened in an Open to LAN world, in case that may be of relevance.

crash-2018-12-25_19.50.19-client.txt

java.lang.NullPointerException: Unexpected error
 at cpk.P(SourceFile:2124)
 at *dqq.e(SourceFile:27)
 at cpk.n(SourceFile:1402)
 at cpk.d(SourceFile:881)
 at cpk.b(SourceFile:394)
 at net.minecraft.client.main.Main.main(SourceFile:154)


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Client thread
Stacktrace:
 at cpk.P(SourceFile:2124)
 at dqq.e(SourceFile:27)

I found a few bugposts with the same general crash message, however I didn't find one with the same stacktrace, so if I overlooked it, sorry