Internal role shown in wso2is but not shown in wso2am

Question

We have wso2am-2.1.0, wso2bps-3.6.0, wso2is-km-5.3.0 and mysql. We set up humanTasks for the user signUp process in the store. After approving in userdb (mysql), an entry about the addition of the role internal / subscriber to the user appears and it is displayed in IS, but this role is not added to APIM. The same happens if we manually add a role to IS. Any ideas for solving this problem? Thank you in advance.