The following issue has been resolved in the MSR 3.0.6 patch release:
[FIELD-5447] Fixed an issue with the
/api/v0/api_tokensendpoint wherein changing the value of the
pageStartparameter did not change the page returned in the request output.
When upgrading from a previous MSR version, for the fix to go into effect you must run a particular command sequence using the RethinkDB CLI. Contact Mirantis support for the RethinkDB CLI instructions. Fresh installations do not require the manual CLI steps.