What are the steps to reproduce your problem?
Add a user with userId 'sören' and password 'sören'.
Add user sören to group camunda-admin
What is the problem?
sören cannot login to camunda webapp. message: Login Failed :
Wrong credentials or missing access rights to application
What would be the expected behavior:
sören can access all applications,
Encoded data from the login request: username:s%C3%B6ren