Hi again @stefanspanberg,
with the help of the information you’ve sent me I believe I’m closer to the cause of this issue. I had it reproducing on one Pi, and am looking to see if you could run a test for me and share your log.
Can you try to create a new scheduler event that tries to turn one of these relays ON? It doesn’t matter which one, and it doesn’t need any recurrence. If my testing is right, it will fail to turn the relay on, but leave an error message in your log at the time of the event creation that might help us get to the bottom of this.
After you’ve created the event, if you could .zip up the log at
/var/log/myDevices.log and attach it to an email to email@example.com, then I can look for this error message, compare it to mind, and share with our developers. Let me know if you need additional steps to accomplish this, and thanks for your help in troubleshooting.