CopyFieldMutation.java ERROR cannot get comparator 1 - datastax-enterprise

Question

I'm running DSE 4.5.1 on a 3-node cluster in AWS with RF=3. One of the nodes gets this error in the system.log. See (long) stack trace below. I would like to understand what the error means or implies. Is this a cause for concern? Lastly, how do I resolve the error?
[cqlsh 4.1.1 | Cassandra 2.0.8.39 | CQL spec 3.1.1 | Thrift protocol 19.39.0]
ERROR [Native-Transport-Requests:34142] 2015-05-12 14:15:33,029 CopyFieldMutation.java (line 166) Cannot get comparator 1 in org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type). This might due to a mismatch between the schema and the data read
java.lang.RuntimeException: Cannot get comparator 1 in org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type). This might due to a mismatch between the schema and the data read
at org.apache.cassandra.db.marshal.CompositeType.getComparator(CompositeType.java:133)
at org.apache.cassandra.db.marshal.AbstractCompositeType.split(AbstractCompositeType.java:100)
at com.datastax.bdp.cassandra.cql3.CopyFieldMutation.buildKeyValueIterator(CopyFieldMutation.java:275)
at com.datastax.bdp.cassandra.cql3.CopyFieldMutation.addPrimaryKeyFieldsToMutation(CopyFieldMutation.java:260)
at com.datastax.bdp.cassandra.cql3.CopyFieldMutation.createMutation(CopyFieldMutation.java:110)
at com.datastax.bdp.search.solr.triggers.SolrAugmentationTrigger.augment(SolrAugmentationTrigger.java:76)
at org.apache.cassandra.triggers.TriggerExecutor.executeInternal(TriggerExecutor.java:190)
at org.apache.cassandra.triggers.TriggerExecutor.execute(TriggerExecutor.java:94)
at org.apache.cassandra.service.StorageProxy.mutateWithTriggers(StorageProxy.java:532)
at org.apache.cassandra.cql3.statements.ModificationStatement.executeWithoutCondition(ModificationStatement.java:546)
at org.apache.cassandra.cql3.statements.ModificationStatement.execute(ModificationStatement.java:530)
at org.apache.cassandra.cql3.QueryProcessor.processStatement(QueryProcessor.java:158)
at com.datastax.bdp.cassandra.cql3.DseQueryHandler.statementExecution(DseQueryHandler.java:207)
at com.datastax.bdp.cassandra.cql3.DseQueryHandler.process(DseQueryHandler.java:86)
at org.apache.cassandra.transport.messages.QueryMessage.execute(QueryMessage.java:119)
at org.apache.cassandra.transport.Message$Dispatcher.messageReceived(Message.java:304)
at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
at org.jboss.netty.handler.execution.ChannelUpstreamEventRunnable.doRun(ChannelUpstreamEventRunnable.java:43)
at org.jboss.netty.handler.execution.ChannelEventRunnable.run(ChannelEventRunnable.java:67)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IndexOutOfBoundsException: index (1) must be less than size (1)
at com.google.common.base.Preconditions.checkElementIndex(Preconditions.java:306)
at com.google.common.base.Preconditions.checkElementIndex(Preconditions.java:285)
at com.google.common.collect.SingletonImmutableList.get(SingletonImmutableList.java:45)
at org.apache.cassandra.db.marshal.CompositeType.getComparator(CompositeType.java:124)
... 23 more
WARN [Native-Transport-Requests:34142] 2015-05-12 14:15:33,029 SolrAugmentationTrigger.java (line 107) Error generating additional mutations for Solr copy/dynamic fields. Update will be applied without them
org.apache.cassandra.exceptions.InvalidRequestException: Cannot get comparator 1 in org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type). This might due to a mismatch between the schema and the data read
at com.datastax.bdp.cassandra.cql3.CopyFieldMutation.createMutation(CopyFieldMutation.java:167)
at com.datastax.bdp.search.solr.triggers.SolrAugmentationTrigger.augment(SolrAugmentationTrigger.java:76)
at org.apache.cassandra.triggers.TriggerExecutor.executeInternal(TriggerExecutor.java:190)
at org.apache.cassandra.triggers.TriggerExecutor.execute(TriggerExecutor.java:94)
at org.apache.cassandra.service.StorageProxy.mutateWithTriggers(StorageProxy.java:532)
at org.apache.cassandra.cql3.statements.ModificationStatement.executeWithoutCondition(ModificationStatement.java:546)
at org.apache.cassandra.cql3.statements.ModificationStatement.execute(ModificationStatement.java:530)
at org.apache.cassandra.cql3.QueryProcessor.processStatement(QueryProcessor.java:158)
at com.datastax.bdp.cassandra.cql3.DseQueryHandler.statementExecution(DseQueryHandler.java:207)
at com.datastax.bdp.cassandra.cql3.DseQueryHandler.process(DseQueryHandler.java:86)
at org.apache.cassandra.transport.messages.QueryMessage.execute(QueryMessage.java:119)
at org.apache.cassandra.transport.Message$Dispatcher.messageReceived(Message.java:304)
at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)
at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)
at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)
at org.jboss.netty.handler.execution.ChannelUpstreamEventRunnable.doRun(ChannelUpstreamEventRunnable.java:43)
at org.jboss.netty.handler.execution.ChannelEventRunnable.run(ChannelEventRunnable.java:67)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)