Thank you Ross,
Yesterday I updated to 3.0.3 and all the trouble started again. I thought I was the only one on this planet having this problem.
Previous I reinstalled Keepass 3.0.2 end recreated all workflows. That worked, no problems anymore. Then, after the update, alle the strange keyboard-behavior was back again. I deleted the hotkey and assigned a input>keyword to the workflow. All the trouble was over. I think the update of Alfred, starting from 3.0.1 (3.0.0. did not have this problem) are the problem. At this moment I’m testing your workaround and it seems to work. I’ll test next days and hope this is the solution.
It would be great if somebody could discover the cause of this “bug” appearing after each update since 3.0.1
For now thanks very much Rob