In the json output have been some enencoded characters, so that the generated json was invalid.
      Workaround so far is reducing the number of showed builds, which reduces the json and so it works again.

          [JENKINS-27290] Communication Error, Syntax Problem

          Is the problem [] characters not being escaped?

          Patrik Boström added a comment - Is the problem [] characters not being escaped?

          Which version of Jenkins are used?

          Patrik Boström added a comment - Which version of Jenkins are used?

          Kay Strobach added a comment -

          sadly i missed to store the broken jenkins version. I upgraded it the last time I was on the system, let's close the issue for now, if it occurs again i will add more information.

          Kay Strobach added a comment - sadly i missed to store the broken jenkins version. I upgraded it the last time I was on the system, let's close the issue for now, if it occurs again i will add more information.

          Jesse Glick added a comment -

          cannot edit labels on a closed issue

          Jesse Glick added a comment - cannot edit labels on a closed issue

            kaystrobach Kay Strobach
            kaystrobach Kay Strobach
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              Updated:
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