Foreman: auto host creation of salt-minions

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Problem:
Hello Everyone!
Looks like I’m stuck with theme of auto host creation of Salt minions.
I see that this option is possible in question Auto host creation of Salt-minion in Foreman

I’ve added to salt master config trigger to upload foreman report after each.
So I followed this recommendations https://github.com/theforeman/smart_proxy_salt/tree/master/salt/report_upload too
/etc/salt/master

... 
schedule:
  highstate:
    function: state.orchestrate
    seconds: 600
    args:
    - _orchestrate/highstate

reactor:
  - 'salt/job/*/ret/*':
    - salt://_reactor/foreman_report_upload.sls

master_tops:
  ext_nodes: /usr/bin/foreman-node

I see that Foreman proxy send this reports and Server receives them successfully.
I see that Foreman Server processes reports regularly with status succeeded
Screen Shot 2020-06-03 at 11.27.40

Perhaps, the cause of issue that grains aren’t uploaded to Foreman, but unfortunately I have no idea how to troubleshoot it correctly

Expected outcome:
Auto host minions creation in Foreman

Foreman and Proxy versions:
Server: Foreman 2.1-rc1 + foreman_salt plugin 13.2.3

Salt Master:
smart-proxy and smart-proxy-salt from yum repo for Foreman 2.1 release
salt 3000.1 and python 3.6.8
on Centos 7.8.2003

Thank you in advance