Two Dimensional Filter accented character display issue after version upgrade

[Attila Süttő]

Hi,

Yesterday, we upgraded our Jira Data Center server from version 9.13.1 to 9.17.5. We have noticed that only the Two Dimensional Filter does not display accented characters correctly (instead, question marks appear), as if the encoding is not UTF-8.

I have checked all possible settings on the server based on the available information, e.g., this article (https://confluence.atlassian.com/jirakb/accented-characters-not-displaying-correctly-in-jira-server-295307662.html), but everything seems to be configured correctly.

I have also tested using an incognito window, creating a new filter, and setting up a blank dashboard, but the issue persists.

I would appreciate any help.

Thank you!

[Mercy · Accepted solution]

This issue is usually caused by a mismatch in character encoding between the JVM runtime and the web front-end rendering used by gadgets after upgrade. In Jira Data Center 9.17, the Two Dimensional Filter gadget now relies more heavily on browser-side JSON rendering, so if the application is not explicitly running in UTF‑8, accented characters can appear as question marks. First confirm that your `setenv.sh` or service wrapper includes `-Dfile.encoding=UTF-8` and that the database collation is `utf8mb4_unicode_ci`, as described in Atlassian’s guidance on [character encoding configuration](

[Attila Süttő]

Hi! Thank you very much for your advice. In the meantime, we upgraded to version 10, and the issue resolved itself. Best regards.