Keycloak Federation with FreeIPA Password sync

I’ve been running Keycloak and FreeIPA in docker for a while now. But the sync of changed passwords doesn’t work. If I change a password in Keycloak, you can no longer log in with the user. If I change the password in FreeIPA it will work for a few minutes and then the same happened like when I changing it in Keycloak. So far I have to create new users in FreeIPA, which could be the reason… Maybe someone knows what I have to change to make it really work bidirectionally?