BPM Studio: Timer Intermediate Catch Event

If I use a Timer Intermediate Catch Event, I have no control over the process after the timer event, it is continued completely incomprehensibly.
It seems that the information required for the further process flow can no longer be retrieved from the database.

If i remove the Timer Intermediate Catch Event, the process is working without failure.

Does anyone have any idea what the problem could be? I absolutely need a Timer because the process should always continue 3 days later.