Hello Dear Atlassian Community,
this is my first post, so please forgive my spelling ore the syntax 
I'm an Atlassian tools Administrator for my company and we have a strange behavior with a custom field.
The customer field is deleted (cleared) whenever a ticket is modified through the edit ticket action!!
This should not happen, and no script is active.
Is this a general bug ore do I miss there something?
Best Regards,
Naqibullah