MySQL collation is actually on 3 levels - database, table, and column. Please use How to Fix the Collation and Character Set of a MySQL Database to check if you have any mismatch over there.
Besides that, you should also check the encoding settings. You can use the steps in JIRA Application internationalisation and encoding troubleshooting to make sure you are using the correct encoding.
Please also check if this is happening on different browsers and machines - this will rule out any specific settings on your machine.
@Jack Graves first caught our eye with his incredible breakdown of what, in his opinion, can make or break a Jira software implementation. (Read his thoughts on this thread)! In this followup Sh...
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