Flowable IDM: No longer working with external LDAP after update from 6.4.0 to 6.4.1

We use flowable-ui-idm-app configured to connect to an external LDAP provider.

After updating from 6.4.0 to 6.4.1 all logins fail with "status":500, "error":"Internal Server Error", "message":"There is no PasswordEncoder mapped for the id "null"", "path":"/flowable-idm/app/authentication".

I guess this is a side effect of https://github.com/flowable/flowable-engine/commit/248de5aec346df61be4ccec603dfa58b5a97f6ae (Cleanup Flowable Spring Boot Security Auto configuration).

I tried setting flowable.idm.password-encoder to spring_delegating_noop (or other values), but this property is not used if flowable.idm.ldap.enabled is true. see: https://github.com/flowable/flowable-engine/blob/eeebfd23af3571741b60e3f663f17c0ecc50a812/modules/flowable-ui-idm/flowable-ui-idm-conf/src/main/java/org/flowable/ui/idm/conf/SecurityConfiguration.java#L79

Edit: https://github.com/flowable/flowable-engine/commit/248de5aec346df61be4ccec603dfa58b5a97f6ae really seems to be the cause. I build flowable-ui-idm-app version 6.4.1 but replaced the flowable-spring-boot-autoconfigure dependency with version 6.4.0 and the error disappeared.

[voronczoff]

Is there a way to fix current 6.4.1 installation? When can we expect new release with fixed issue?

[PascalSchumacher]

Thank you very much! 👍 😃