I created a report in Jasper Studio with 12 subreports in 12 different detail bands. The subreports contain either a table or a chart. Preview of the report and publishing to Jasper Server worked fine. I can load the report into a browser (IE or Firefox) with Jasper Server and the first 5 pages of 14 are displayed correctly. On browsing to page 6 the following error pops up: HTML response error core: 500, error Details: Request processing failed; nested exception is java.lang.IndexOutOfBoundsException: Index:3, Size:3 The page is not displayed. This behavior is strange, because I can export the whole report as PDF without problems. Does anybody has a clue? I am using Jasper Studio 5.6.0 and Jasper Server 5.6.0 in the community edition on Windows 7. Thank you very much, Roland