The "undestr" flags don't work on the Supply Signal Event and Timed Supply Event

Good night, congratulations on the excellent plugin.
I have a problem that the "undestr" flags don't work on the Supply Signal Event and Timed Supply Event. I've tried everything but I keep destroying buildings in PVE areas where the supply falls.
I need help, thank you ...

I think you can check if the flags were created successfully with ZoneManager
/zone flags - Open the UI flag editor

I did the wipe and tested it, it's working, I'm very happy, very grateful for the attention and good Easter ...