There's no minimally required duration for builds. They always show up no matter how long they took. When displayed in the calendar they're always big enough so that the name of the job can be displayed. Example:

My guess is that the problem is somewhere else. Some things to check:

1. See if the [Jenkins logfile](https://wiki.jenkins.io/display/JENKINS/Logging) shows any exceptions coming from the calendar-view plugin.

2. Create a List View where everything is configured the same as for the Calendar View. Does the job show up in the List View? (CalendarView is a subtype of ListView and inherits much of its behaviour. If a job doesn't display in ListView, its builds won't show up in CalendarView either).

3. Open /job/NAME_OF_YOUR_JOB/api/json in a browser. This should give information about the type of job we're talking about as well as its builds.

Could not find any exceptions in the log.  I made a list view as suggested and it shows the jobs fine.  (I guess the main default view where we see and created/maintain the jobs anyway is a list view too.)  I opened the API JSON and have attached the output (with some name / URL edits for privacy).  If there's other information I can send let me know.

t.json

For me this works OK in the month view, but the week and day views only show a single job at the top of the list which appears to be one of the last jobs of the day.

I've looked in the log files but can't see anything, how can I debug this problem further?

• Calendar View Plugin v 0.3.1
• Jenkins v2.164.2

Sorry for the long silence. I've taken over this plugin last year, but hadn't gotten around to checking all issues.
Is this still an issue with the current Jenkins+Plugin?