Neo4J Bolt Driver Create Relationship Hangs

Question

I'm running into an issue when creating relationships to and from certain nodes hangs. And in some cases the hanging crashes the entire Neo4J instance.

When I'm looking at the stack trace of my application I'm seeing this behavior with the Java bolt driver.

sun.misc.Unsafe.park(Native Method)
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
java.util.concurrent.CompletableFuture$Signaller.block(CompletableFuture.java:1693)
java.util.concurrent.ForkJoinPool.managedBlock(ForkJoinPool.java:3323)
java.util.concurrent.CompletableFuture.waitingGet(CompletableFuture.java:1729)
java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1895)
org.neo4j.driver.internal.util.Futures.blockingGet(Futures.java:108)
org.neo4j.driver.internal.ExplicitTransaction.close(ExplicitTransaction.java:117)

This is when closing the transaction, though in some cases when I close the StatementResult I get the same hangups.

I tried reinstalling Neo4J from a dump and that didn't work, and I also tried removing and recreating all of my indexes and that didn't work.