Okta "Staged" user problems with SCIM group push

We get a strange situation whenever we add an Okta staged user to a group that we push to our remote App using SCIM.

  1. The staged user gets added to our remote group via SCIM calling POST /Groups/
  2. Then the same staged user immediately gets removed from the same remote group, again via POST /Groups/

Does anyone know why this behavior occurs? Is there Okta documentation explaining how our application should behave with respect to staged users in Okta groups?