Step to reproduce.
1. Create a simple text custom field (my case is `Account holder's name`.
2. Add the custom field to a new Request type.
3. Create a Jira Automation triggered by this Request type.
4. In automation add a step to print the following comment
```
"{{issue.Account holder's name.value}}"
"{{not(issue.Account holder's name.value)}}"
"{{issue.Account holder's name.isEmpty}}"
"{{not(issue.Account holder's name.isEmpty)}}"
"{{issue.Account holder's name.value.isEmpty}}"
"{{issue.Account holder's name}}"
```
5. Raise a request ticket using the Request type created, don't fill in anything in your custom field.
6. Now you will get a comment
```
```
`IsEmpty` either returns null or true. It always returns' true' if I test it with `not(isEmpty)`. It is not correct. Am I doing sth wrong? I also tried `isNotEmpty`, but the result was the same, always `true` after `not`.