TWRP does not mount encrypted storage: Password failed topic

Hi there,

I recently installed XZDualRecovery on my device and activated the encrytion of internal storage. Unfortunately, TWRP is unable to mount the encrypted internal storage. It always fails with the error message "Password failed, please try again". The password is correct though.
Has anyone experienced the same problem and solved it? I couldn't find any solution for this.

Thanks in advance!