Bit of a strange bug, but easy to replicate: 8.1.20
- Create a UDT with a tag with a configured alarm
- Create another UDT and set the first UDT as the parent data type
- Copy the tag from the first UDT and modify the configured alarm
- The alarm is deleted from the new tag
I just tried this on 8.1.20 and I'm seeing the alarms update on the second UDT while it is set to have a parent UDT. Is there a specific configuration you're changing on the alarm? Would you be able to provide any screenshots of the behavior?
I will try to get a few screenshots later. Otherwise I can probably explain it a bit better, within the child UDT editor, I copy the tag from the parent UDT. Any modification to the configured alarm on the new tag causes the alarm to be deleted.
I think I ran into this too once. Try creating a new tag, rather than copy paste.