In order to make your issue reports as actionable as possible, please provide the following information, depending on the issue type.

Bug report

For bug reports, provide this information, please:

What Debezium connector do you use and what version?

MySQL 2.3.2-Final

What is the connector configuration?

#name=engine
connector.class=io.debezium.connector.mysql.MySqlConnector
#offset.storage=org.apache.kafka.connect.storage.FileOffsetBackingStore
#offset.storage.file.filename=offsets7.dat
#offset.flush.interval.ms=60000
database.hostname=dre-cluster.fyre.ibm.com
database.port=3306
database.user=dbz
database.password=<PW>
database.server.id=123456
table.include.list=mqsi.Lending
schema.history.internal=io.debezium.storage.file.history.FileSchemaHistory
schema.history.internal.file.filename=mysql-schema-history.dat
#database.server.id=85802
#database.server.name=my-app-connector7
#database.history=io.debezium.relational.history.FileDatabaseHistory
#database.history.file.filename=deleteme-dbhistory7.dat
#debezium.source.offset.storage.file.filename=offset.dat

and

      Configuration results = Configuration.load(readFile(filename))
        .withSystemProperties(Function.identity()).edit()
        .with(EmbeddedEngine.ENGINE_NAME, "DebeziumWriter")
        .with(EmbeddedEngine.OFFSET_STORAGE, FileOffsetBackingStore.class)
        .with("name", "DebeziumWriter")
        .with("topic.prefix", "dbserver1")

As you can see from the comments, I've tried a few things...!

What is the captured database version and mode of deployment?

MySQL 8.1.0 in own kubernetes cluster

What behaviour do you expect?

Successful connection

What behaviour do you see?

[pool-1-thread-1] ERROR io.debezium.embedded.EmbeddedEngine - null
Exception in thread "pool-1-thread-1" org.apache.kafka.common.config.ConfigException: Invalid value io.debezium.storage.kafka.history.KafkaSchemaHistory for configuration schema.history.internal: Class io.debezium.storage.kafka.history.KafkaSchemaHistory could not be found.
        at org.apache.kafka.common.config.ConfigDef.parseType(ConfigDef.java:744)
        at org.apache.kafka.common.config.ConfigDef$ConfigKey.<init>(ConfigDef.java:1172)
        at org.apache.kafka.common.config.ConfigDef.define(ConfigDef.java:152)
        at io.debezium.config.Field.group(Field.java:453)
        at io.debezium.config.ConfigDefinition.addToConfigDef(ConfigDefinition.java:104)
        at io.debezium.config.ConfigDefinition.configDef(ConfigDefinition.java:71)
        at io.debezium.connector.mysql.MySqlConnectorConfig.configDef(MySqlConnectorConfig.java:922)
        at io.debezium.connector.mysql.MySqlConnector.config(MySqlConnector.java:76)
        at io.debezium.embedded.EmbeddedEngine.run(EmbeddedEngine.java:717)
        at io.debezium.embedded.ConvertingEngineBuilder$2.run(ConvertingEngineBuilder.java:229)
        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
        at java.base/java.lang.Thread.run(Thread.java:829)

Do you see the same behaviour using the latest relesead Debezium version?

I think this is the latest!

Do you have the connector logs, ideally from start till finish?

(You might be asked later to provide DEBUG/TRACE level log)

Yes

How to reproduce the issue using our tutorial deployment?

Dunno, I can provide the source code for the Java connector though.  I used your cache-invalidation example for partial inspiration.  This works perfectly for PostgreSQL, but I can't get it to work for MySQL