Textfield (single line) using the Default Text Renderer shows the null string

[Ji-Sung Kim]

I added custom text filed (single line) with the default text renderer in my JIRA about two years ago, and we had used well without any problems.

But suddenly, the problem arose last month. It has begun to show null string when the value was rendered like below.

When i click the value to edit, the null string disappear. 

Rendered view: US16-E-EPnull-002

Edit view: US16-E-EP-002

How can i fix this problem?

[Deleted user · Accepted solution]

What JIRA version do you have? This might be because JIRA is interpreting that lin "EP-002" as a JIRA issue # (an issue pattern in the Advance Setting) and it's not finding anything. That's my best guess.

[Ji-Sung Kim]

We uses 6.2 version of JIRA. 

In the Advanced Settings, there is no Issue pattern. Do you mean project key pattern? 

[Ji-Sung Kim]

I fixed the problem. After i changed regular expression for project key pattern it works properly. 

Thanks very much. 

[Deleted user]

Glad to have helped!