KafkaAvroParser problem

I have a problem when I try to load the data from avro-formatted kafka stream to Vertica flex table. I use KafkaAvroParser, schema registry server and the query:

COPY "public"."test" SOURCE KafkaSource(stream='public-test|0|1', brokers='127.0.0.1:9092', duration=interval '9941 milliseconds', eof_timeout=interval '1000 milliseconds', stop_on_eof=true, message_max_bytes=1048576 ) PARSER KafkaAvroParser(schema_registry_url='http://127.0.0.1:8081/') REJECTED DATA AS TABLE "public"."test_rej" TRICKLE STREAM NAME 'vkstream_stream_config_microbatch_8000001_conversion' NO COMMIT;

When I use the command line avro consumer:
kafka-avro-console-consumer --topic public-test --zookeeper 127.0.0.1:2181 --property print.key=true

The result is:
{"id":{"int":1}} {"id":{"int":1},"value":{"string":"test1"}}

But in my Vertica flex table I get just the empty values:

select maptostring(____raw____) from public.test;

{
"name" : "test",
"id" : "",
"value" : ""
}

I have no idea, what I'm doing wrong...