Hello!
I have always used a condition for transitions in workflows when I did not want to transition an issue if a field was empty. I have been using this for Labels, Text fields, etc.
I added the condition Value Field and set != NULL, for example:

A couple of days ago this condition started to fail and now all issues can transition, even if the field is empty.
Can someone assist with this problem and explain why this used to work and is now giving problems? We have this condition in thousands of transitions, which is causing severe trouble in many workflows
Thank you