[MC-190103] Crash when using a nether portal: java.lang.IndexOutOfBoundsException: fromIndex

I entered my usual nether portal as normal and the game spawned me in an unfamiliar setting (same coordinates). A nether portal did not generate with me when I spawned in the nether. I then tried to create a nether portal at this location only to be met with a crash (this happens if I make a portal anywhere in this biome).

Out of curiosity, I ventured out in the nether and all my other buildings remain.

The nether portals work as normal in other locations in the nether.

Stack trace

1.16-pre7: crash-2020-06-16_18.27.04-server.txt

Description: Ticking player

java.lang.IndexOutOfBoundsException: fromIndex < 0: -2368549
	at java.util.BitSet.checkRange(BitSet.java:362)
	at java.util.BitSet.set(BitSet.java:481)
	at cia.a(SourceFile:13)
	at cib.<init>(SourceFile:143)
	at cib.<init>(SourceFile:108)
	at cic.b(SourceFile:43)
	at cic.a(SourceFile:50)
	at chy.b(SourceFile:85)
	at chy$$Lambda$4051/1753702905.get(Unknown Source)
	at chy.a(SourceFile:120)
	at chy$$Lambda$4054/349611958.run(Unknown Source)
	at ams$b.run(SourceFile:54)
	at amq.e(SourceFile:94)
	at amq.a(SourceFile:137)
	at amq.run(SourceFile:105)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)

Crash when using a nether portal: java.lang.IndexOutOfBoundsException: fromIndex < 0: -2368549

Stack trace