hop-server execution with async plugin returning java.lang.NoSuchMethodError exception

When starting a hop server with the -j project flag and trying to execute asynchRun service endpoint we are getting the below:

endpoint: http://34.71.86.128/hop/asyncRun/?service=dataload

error:
java.lang.NoSuchMethodError: org.apache.hop.metadata.util.HopMetadataUtil.getStandardHopMetadataProvider(Lorg/apache/hop/core/variables/IVariables;)Lorg/apache/hop/metadata/api/IHopMetadataProvider

Hop server starts successfully with the below response:

root@ds-workbench-hop-2:/home/hop#* ./hop-server.sh hop-server.xml -j async-sample-project &*
[1] 12083
root@ds-workbench-hop-2:/home/hop# 2021/10/26 17:12:53 - HopServer - Enabling project 'async-sample-project'
2021/10/26 17:12:53 - HopServer - Installing timer to purge stale objects after 1440 minutes.
2021/10/26 17:12:53 - HopServer - Created listener for webserver @ address : 10.128.0.16:80

Project output:
root@ds-workbench-hop-2:/home/hop# ./hop-conf.sh -pl
Projects:
async-sample-project : /home/hop-projects/async-sample-project
Configuration file: file:/home/hop-projects/async-sample-project/project-config.json

latest async plugin jar attached to this ticket

stack trace error message attached to this ticket

Metadata folder is defined in the hop-server.xml (also attached)

Project is also attached, it is using the sample project defined in the async-plugin repository without the default project as parent: https://github.com/mattcasters/hop-async-run.git